Seating-system kits and methods of configuring seating systems

ABSTRACT

A method of configuring a seating system of a vehicle that comprises floor beams, comprises attaching a secondary pair of seat tracks to the floor beams of the vehicle such that one of the secondary pair of seat tracks is positioned between seat tracks of a primary pair of seat tracks of the seating system. Only one seat track of the secondary pair of seat tracks is positioned between seat tracks of the primary pair of seat tracks along an entire length of the secondary pair of seat tracks.

TECHNICAL FIELD

The present disclosure relates to seating systems, seating-system kits,and methods of configuring seating systems.

BACKGROUND

Passenger vehicles, such as airplanes, are equipped with seats toprovide comfortable and safe travel for the passengers. These seats area part of a seating system, which includes components for attachingindividual seats to other parts of the vehicle. Generally, seatingarrangements in a passenger vehicle, such as an airplane, are fixed andcannot be easily altered after fabrication of the vehicle is completed.However, the seating needs may change once the vehicle is placed inservice.

SUMMARY

Accordingly, apparatuses and methods, intended to address at least theabove-identified concerns, would find utility

The following is a non-exhaustive list of examples, which may or may notbe claimed, of the subject matter according to the invention.

One example of the subject matter according to the invention relates toa seating system for a vehicle. The vehicle comprises floor beams, whichsupport floor panels that define a floor surface. The vehicle has avirtual longitudinal plane, perpendicular to the floor surface. Thevehicle also has a virtual longitudinal axis, parallel to the floorsurface and lying in the virtual longitudinal plane. The seating systemcomprises a primary pair of seat tracks, a secondary pair of seattracks, one of which is positioned between seat tracks of the primarypair of seat tracks, and a first seat assembly. The first seat assemblycomprises a first seat support and a first plurality of seats, attachedto the first seat support. The first seat support is attached to theprimary pair of seat tracks.

Another example of the subject matter according to the invention relatesto a seating-system kit for a vehicle that comprises floor beams, aprimary pair of seat tracks, attached to the floor beams, and a firstseat assembly. The first seat assembly comprises a first seat supportand a first plurality of seats, attached to the first seat support. Thefirst seat support is attached to the primary pair of seat tracks. Thefloor beams support floor panels that define a floor surface. Thevehicle has a virtual longitudinal plane, perpendicular to the floorsurface. The vehicle also has a virtual longitudinal axis, parallel tothe floor surface and lying in the virtual longitudinal plane. Theseating-system kit comprises a secondary pair of seat tracks and asecond seat assembly. The second seat assembly comprises a second seatsupport and a second plurality of seats, attached to the second seatsupport. The second seat support is configured to be attached to thesecondary pair of seat tracks.

Yet another example of the subject matter according to the inventionrelates to a seating-system kit for a vehicle that comprises floor beamsand a primary pair of seat tracks, attached to the floor beams. Theseating-system kit comprises a secondary pair of seat tracks, aplurality of struts, a doubler, and a spacer. The plurality of strutscomprises at least one of a first strut or a second strut. The pluralityof struts is configured to provide a coupling interface between thesecondary pair of seat tracks and the floor beams. The doubler isconfigured to at least partially cover an opening in one of the floorbeams. The spacer is configured to be positioned in the opening in theone of the floor beams. At least a portion of the spacer is between thedoubler and the second strut when the second strut and the doubler areattached to the one of the floor beams. The first strut is geometricallydifferent from the second strut.

Yet another example of the subject matter according to the inventionrelates to a method of configuring a seating system of a vehicle thatcomprises floor beams. The seating system comprises a primary pair ofseat tracks, attached to the floor beams and supporting a first seatingassembly. The method comprises attaching a secondary pair of seat tracksto the floor beams of the vehicle such that one of the secondary pair ofseat tracks is positioned between seat tracks of the primary pair ofseat tracks.

BRIEF DESCRIPTION OF THE DRAWINGS

Having thus described one or more examples of the invention in generalterms, reference will now be made to the accompanying drawings, whichare not necessarily drawn to scale, and wherein like referencecharacters designate the same or similar parts throughout the severalviews, and wherein:

FIG. 1 is a block diagram of a vehicle comprising a seating system,according to one or more examples of the present disclosure;

FIG. 2 is a block diagram of fastening hardware used in the seatingsystem of the vehicle of FIG. 1, according to one or more examples ofthe present disclosure;

FIG. 3A is a schematic, top view of a primary pair of rails and asecondary pair of rails of the vehicle of FIG. 1, according to one ormore examples of the present disclosure;

FIG. 3B is a schematic, top view of different seat assemblies supportedby the primary pair of rails and the secondary pair of rails of FIG. 3A,according to one or more examples of the present disclosure;

FIG. 3C is a schematic, top view of different seat assemblies allsupported by h pair of rails of FIG. 3A, according to one or moreexamples of the present disclosure;

FIG. 4A is a schematic, front view of a first seat assembly supported bythe primary pair of rails of FIG. 3A according to one or more examplesof the present disclosure;

FIG. 4B is a schematic, front view of a second seat assembly supportedby the secondary pair of rails of FIG. 3A according to one or moreexamples of the present disclosure;

FIG. 5A is a schematic, top view of the primary pair of rails and thesecondary pair of rails of the vehicle of FIG. 1, connected to floorbeams by a plurality of struts, according to one or more examples of thepresent disclosure;

FIG. 5B is a schematic, front view of the secondary pair of rails of thevehicle of FIG. 1, connected to the floor beam by a plurality of struts,according to one or more examples of the present disclosure;

FIG. 5C-1 is a schematic, perspective view of a first strut of theplurality of struts of FIG. 5B, according to one or more examples of thepresent disclosure;

FIG. 5C-2 is a schematic, perspective view of a second strut of theplurality of struts of FIG. 5B, according to one or more examples of thepresent disclosure;

FIG. 5D is a schematic, back view of the secondary pair of rails,connected to the floor beam of the vehicle of FIG. 1 by the plurality ofstruts of FIG. 5A, according to one or more examples of the presentdisclosure;

FIG. 5E is a schematic, side view of one of the secondary pair of rails,connected to the floor beam of the vehicle of FIG. 1 by the first strutof the plurality of struts of FIG. 5B, according to one or more examplesof the present disclosure;

FIG. 5F is a schematic, side view of one of the secondary pair of rails,connected to the floor beam of the vehicle of FIG. 1 by the second strutof the plurality of struts of FIG. 5B, according to one or more examplesof the present disclosure;

FIG. 5G is a schematic, back view of the secondary pair of rails,struts, and doubler having fastener openings, according to one or moreexamples of the present disclosure;

FIG. 6 is a block diagram of a method for configuring the seating systemof the vehicle of FIG. 1, according to one or more examples of thepresent disclosure;

FIG. 7 is a block diagram of aircraft production and servicemethodology; and

FIG. 8 is a schematic illustration of an aircraft.

DETAILED DESCRIPTION

In FIG. 1, referred to above, solid lines, if any, connecting variouselements and/or components may represent mechanical, electrical, fluid,optical, electromagnetic and other couplings and/or combinationsthereof. As used herein, “coupled” means associated directly as well asindirectly. For example, a member A may be directly associated with amember B, or may be indirectly associated therewith, e.g., via anothermember C. It will be understood that not all relationships among thevarious disclosed elements are necessarily represented. Accordingly,couplings other than those depicted in the block diagrams may alsoexist. Dashed lines, if any, connecting blocks designating the variouselements and/or components represent couplings similar in function andpurpose to those represented by solid lines; however, couplingsrepresented by the dashed lines may either be selectively provided ormay relate to alternative examples of the present disclosure. Likewise,elements and/or components, if any, represented with dashed lines,indicate alternative examples of the present disclosure. One or moreelements shown in solid and/or dashed lines may be omitted from aparticular example without departing from the scope of the presentdisclosure. Environmental elements, if any, are represented with dottedlines. Virtual (imaginary) elements may also be shown for clarity. Thoseskilled in the art will appreciate that some of the features illustratedin FIG. 1 may be combined in various ways without the need to includeother features described in FIG. 1, other drawing figures, and/or theaccompanying disclosure, even though such combination or combinationsare not explicitly illustrated herein. Similarly, additional featuresnot limited to the examples presented, may be combined with some or allof the features shown and described herein.

In FIGS. 7 and 8, referred to above, the blocks may represent operationsand/or portions thereof and lines connecting the various blocks do notimply any particular order or dependency of the operations or portionsthereof. Blocks represented by dashed lines indicate alternativeoperations and/or portions thereof. Dashed lines, if any, connecting thevarious blocks represent alternative dependencies of the operations orportions thereof. It will be understood that not all dependencies amongthe various disclosed operations are necessarily represented. FIGS. 7and 8 and the accompanying disclosure describing the operations of themethod(s) set forth herein should not be interpreted as necessarilydetermining a sequence in which the operations are to be performed.Rather, although one illustrative order is indicated, it is to beunderstood that the sequence of the operations may be modified whenappropriate. Accordingly, certain operations may be performed in adifferent order or simultaneously. Additionally, those skilled in theart will appreciate that not all operations described need be performed.

In the following description, numerous specific details are set forth toprovide a thorough understanding of the disclosed concepts, which may bepracticed without some or all of these particulars. In other instances,details of known devices and/or processes have been omitted to avoidunnecessarily obscuring the disclosure. While some concepts will bedescribed in conjunction with specific examples, it will be understoodthat these examples are not intended to be limiting.

Unless otherwise indicated, the terms “first,” “second,” etc. are usedherein merely as labels, and are not intended to impose ordinal,positional, or hierarchical requirements on the items to which theseterms refer. Moreover, reference to, e.g., a “second” item does notrequire or preclude the existence of, e.g., a “first” or lower-numbereditem, and/or, a “third” or higher-numbered item.

Reference herein to “one example” means that one or more feature,structure, or characteristic described in connection with the example isincluded in at least one implementation. The phrase “one example” invarious places in the specification may or may not be referring to thesame example.

As used herein, a system, apparatus, structure, article, element,component, or hardware “configured to” perform a specified function isindeed capable of performing the specified function without anyalteration, rather than merely having potential to perform the specifiedfunction after further modification. In other words, the system,apparatus, structure, article, element, component, or hardware“configured to” perform a specified function is specifically selected,created, implemented, utilized, programmed, and/or designed for thepurpose of performing the specified function. As used herein,“configured to” denotes existing characteristics of a system, apparatus,structure, article, element, component, or hardware which enable thesystem, apparatus, structure, article, element, component, or hardwareto perform the specified function without further modification. Forpurposes of this disclosure, a system, apparatus, structure, article,element, component, or hardware described as being “configured to”perform a particular function may additionally or alternatively bedescribed as being “adapted to” and/or as being “operative to” performthat function.

Illustrative, non-exhaustive examples, which may or may not be claimed,of the subject matter according the present disclosure are providedbelow.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3A, 3C,4A, and 4B, seating system 1100 for vehicle 1000 is disclosed. Vehicle1000 comprises floor beams 1020, which support floor panels 1060 thatdefine floor surface 1062. Vehicle 1000 has virtual longitudinal plane1012, perpendicular to floor surface 1062. Vehicle 1000 also has virtuallongitudinal axis 1010, parallel to floor surface 1062 and lying invirtual longitudinal plane 1012. Seating system 1100 comprises primarypair of seat tracks 1300, secondary pair of seat tracks 1310, and firstseat assembly 1200. One of secondary pair of seat tracks 1310 ispositioned between seat tracks of primary pair of seat tracks 1300.First seat assembly 1200 comprises first seat support 1202 and firstplurality of seats 1204, attached to first seat support 1202. First seatsupport 1202 is attached to primary pair of seat tracks 1300. Thepreceding subject matter of this paragraph characterizes example 1 ofthe present disclosure.

Two pairs of seat tracks, such as primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310, positioned at the same generallocation in vehicle 1000, allows changing seating configurations ofvehicle 1000 with minimal efforts. In one example, each of primary pairof seat tracks 1300 and secondary pair of seat tracks 1310 is configuredto support different types of seat assemblies, such as seat assemblieswith different number of seats. In some examples, these types of seatassemblies are interchangeable. In some examples, one seat assembly isused, for instance, to increase the seating capacity of vehicle 1000,while another seat assembly is used, for instance, to increase the aislespace.

In one example, first seat assembly 1200 is attached to and supported byprimary pair of seat tracks 1300 at one location in vehicle 1000.Primary pair of seat tracks 1300 is also configured for attaching to andsupporting another seat assembly at another location in vehicle 1000,e.g., behind first seat assembly 1200. Secondary pair of seat tracks1310 is also available at this other location and is configured forattaching to and supporting yet another seat assembly, different fromthe seat assembly that can be supported by primary pair of seat tracks1300 at this other location. An operator of vehicle 1000 may choosewhich one of these seat assemblies should be used at this location.Because both primary pair of seat tracks 1300 and secondary pair of seattracks 1310 are available, the seat assemblies can be changed withminimal efforts, e.g., without involving a manufacturer of vehicle 1000.In an example, a seat assembly is bolted or otherwise fastened to eitherprimary pair of seat tracks 1300 or secondary pair of seat tracks 1310.

To avoid interference between primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310, in some examples, these pairs areshifted relative to each other, for example, in the directionperpendicular to virtual longitudinal plane 1012. In some examples, thedegree of this shift is less than the track width of either primary pairof seat tracks 1300 or secondary pair of seat tracks 1310. As such, oneof secondary pair of seat tracks 1310 is positioned between the seattracks of primary pair of seat tracks 1300, and first seat assembly1200. In some examples, the track widths of primary pair of seat tracks1300 and secondary pair of seat tracks 1310 are identical.

As used herein, “virtual” means having the attributes of an entitywithout possessing its physical form. For example, a virtual referenceplane is an intangible or imaginary plane, rather than a physical one,with respect to which, e.g., location and/or orientation of otherphysical and/or intangible entities may be defined.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3A and4B, only one of secondary pair of seat tracks 1310 is positioned betweenseat tracks of primary pair of seat tracks 1300. The preceding subjectmatter of this paragraph characterizes example 2 of the presentdisclosure, wherein example 2 also includes the subject matter accordingto example 1, above.

Positioning one of secondary pair of seat tracks 1310 between the seattracks of primary pair of seat tracks 1300 allows to avoid interferencebetween secondary pair of seat tracks 1310 and primary pair of seattracks 1300. Specifically, in some examples, secondary pair of seattracks 1310 is shifted relative primary pair of seat tracks 1300 in thedirection perpendicular to virtual longitudinal plane 1012. When thedegree of shift is less than the width of primary pair of seat tracks1300, only one of secondary pair of seat tracks 1310 is positionedbetween seat tracks of primary pair of seat tracks 1300. In someexamples, the degree of shift is minimal to ensure that seat assembliessupported by primary pair of seat tracks 1300 and secondary pair of seattracks 1310 can be aligned along virtual longitudinal axis 1010.

Positioning only one of secondary pair of seat tracks 1310 between theseat tracks of primary pair of seat tracks 1300 also allows using twopairs seat tracks with the same or similar track widths. In some cases,a certain minimum track width is needed to provide support to seatassemblies attached to primary pair of seat tracks 1300 and secondarypair of seat tracks 1310. In an example, each seat assembly includesmultiple seats, forming a row that may extend in the directionperpendicular to the pair of tracks, supporting this assembly. Widertracks are able to support more seats in such assemblies.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, onlyone of secondary pair of seat tracks 1310 is positioned between seattracks of primary pair of seat tracks 1300 along the entire length ofsecondary pair of seat tracks 1310. The preceding subject matter of thisparagraph characterizes example 3 of the present disclosure, whereinexample 3 also includes the subject matter according to example 2,above.

Positioning one of secondary pair of seat tracks 1310 between the seattracks of primary pair of seat tracks 1300 along the entire length ofsecondary pair of seat tracks 1310 allows to avoid interference betweensecondary pair of seat tracks 1310 and primary pair of seat tracks 1300along that length. Furthermore, positioning one of secondary pair ofseat tracks 1310 between seat tracks of primary pair of seat tracks 1300along the entire length of secondary pair of seat tracks 1310 providessupport to secondary pair of seat tracks 1310 along its entire length.This, in turn, allows using secondary pair of seat tracks 1310 that isshorter than would otherwise be necessarily, and shorter tracks have alower weight. In an example, secondary pair of seat tracks 1310 isshorter without sacrificing support and load distributioncharacteristics of seating system 1100.

When installed, primary pair of seat tracks 1300 and secondary pair ofseat tracks 1310 are both attached to the same set of floor beams 1020in some examples. Primary pair of seat tracks 1300 are longer and areattached to a large number of floor beams 1020 than secondary pair ofseat tracks 1310, in one example. The large number of floor beams 1020delivers more uniform load distribution for primary pair of seat tracks1300. In some examples, the same set of floor beams 1020, to which bothprimary pair of seat tracks 1300 and secondary pair of seat tracks 1310are attached, provides load redistribution between primary pair of seattracks 1300 and secondary pair of seat tracks 1310.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, onlyportion of one of primary pair of seat tracks 1300 is positioned betweenseat tracks of secondary pair of seat tracks 1310. The preceding subjectmatter of this paragraph characterizes example 4 of the presentdisclosure, wherein example 4 also includes the subject matter accordingto any one of examples 1 to 3, above.

In some examples, primary pair of seat tracks 1300 is longer thansecondary pair of seat tracks 1310 such that only portion of one ofprimary pair of seat tracks 1300 is positioned between seat tracks ofsecondary pair of seat tracks 1310. As such, primary pair of seat tracks1300 is configured to support a larger number of seat assemblies thansecondary pair of seat tracks 1310. The portion of one of primary pairof seat tracks 1300, which is positioned between seat tracks ofsecondary pair of seat tracks 1310, corresponds to a location in vehicle1000 where different seat assemblies can be supported by either primarypair of seat tracks 1300 or secondary pair of seat tracks 1310.

This orientation of primary pair of seat tracks 1300 and secondary pairof seat tracks 1310 allows to reconfigure vehicle 1000 or, morespecifically, to change the seating configuration of vehicle 1000. Theseating configuration can be changed where both primary pair of seattracks 1300 and secondary pair of seat tracks 1310 are available, whichis where the portion of one of primary pair of seat tracks 1300 ispositioned between seat tracks of secondary pair of seat tracks 1310.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A andFIG. 3B, the seat tracks of primary pair of seat tracks 1300 are longerthan seat tracks of secondary pair of seat tracks 1310. The precedingsubject matter of this paragraph characterizes example 5 of the presentdisclosure, wherein example 5 also includes the subject matter accordingto any one of examples 1 to 4, above.

In some examples, primary pair of seat tracks 1300 is longer thansecondary pair of seat tracks 1310 and are configured to support alarger number of seat assemblies than secondary pair of seat tracks1310. The portion of one of primary pair of seat tracks 1300, which ispositioned between seat tracks of secondary pair of seat tracks 1310,corresponds to a location in vehicle 1000 where different seatassemblies can be supported by either primary pair of seat tracks 1300or secondary pair of seat tracks 1310. However, in some examples,additional seat assemblies are supported by primary pair of seat tracks1300 outside of this location.

This orientation of primary pair of seat tracks 1300 and secondary pairof seat tracks 1310 allows to reconfigure vehicle 1000 or, morespecifically, to change the seating configuration of vehicle 1000. Theseating configuration can be changed where both primary pair of seattracks 1300 and secondary pair of seat tracks 1310 are available, whichis where the portion of one of primary pair of seat tracks 1300 ispositioned between seat tracks of secondary pair of seat tracks 1310.FIG. 3B illustrates first seat assembly 1200 attached to primary pair ofseat tracks 1300, second seat assembly 1210 attached to secondary pairof seat tracks 1310, third seat assembly 1220 attached to primary pairof seat tracks 1300. In one example, second seat assembly 1210 isreplaced by fourth seat assembly 1230, as shown in FIG. 3C. Wheninstalled, fourth seat assembly 1230 is attached to primary pair of seattracks 1310. In this example, first seat assembly 1200 and third seatassembly 1220 cannot be attached to secondary pair of seat tracks 1310because of the length of secondary pair of seat tracks 1310. However,primary pair of seat tracks 1300 is longer than secondary pair of seattracks 1310 and first seat assembly 1200 and third seat assembly 1220can be attached to primary pair of seat tracks 1300.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A,neither one of secondary pair of seat tracks 1310 intersects either oneof primary pair of seat tracks 1300. The preceding subject matter ofthis paragraph characterizes example 6 of the present disclosure,wherein example 6 also includes the subject matter according to any oneof examples 1 to 5, above.

No intersections between primary pair of seat tracks 1300 and secondarypair of seat tracks 1310 indicate that secondary pair of seat tracks1310 is attached to floor beams 1020 without interfering with primarypair of seat tracks 1300. Specifically, primary pair of seat tracks 1300remains attached in its original position when secondary pair of seattracks 1310 is installed. Having a combination of primary pair of seattracks 1300 and secondary pair of seat tracks 1310 allows changing theseating configuration of vehicle 1000.

In some examples, primary pair of seat tracks 1300 and secondary pair ofseat tracks 1310 are spaced apart from each other such as shown, e.g.,in FIG. 3A, to avoid interference. This spacing eliminates possibilityof intersections between primary pair of seat tracks 1300 and secondarypair of seat tracks 1310. Also, this spacing allows having tracks thatare not parallel.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, theseat tracks of primary pair of seat tracks 1300 comprise first portions1301 and second portions 1302, oblique relative to first portions 1301.First portions 1301 of the seat tracks of primary pair of seat tracks1300 are parallel to seat tracks of secondary pair of seat tracks 1310.The preceding subject matter of this paragraph characterizes example 7of the present disclosure, wherein example 7 also includes the subjectmatter according to any one of examples 1 to 6, above.

In some examples, first portions 1301 and second portions 1302 ofprimary pair of seat tracks 1300 are positioned in different parts ofvehicle 1000. In some cases, these parts of the vehicle have differentamounts of space available to accommodate seat assemblies. In someexamples, first portions 1301 and second portions 1302 of primary pairof seat tracks 1300 are oblique to each other to accommodate these spacedifferences in vehicle 1000.

In some examples, first portions 1301 and second portions 1302 ofprimary pair of seat tracks 1300 are used for attaching different typesof seat assemblies, such as seat assemblies with different numbers ofseats. Additionally, in some examples, secondary pair of seat tracks1310 is used to attach another type of seat assemblies, which are alsodifferent from seat assemblies attached to primary pair of seat tracks1300 (either first portions 1301 or second portions 1302 thereof). Thiscapabilities of supporting different types of seats provides changeableseating arrangement in vehicle 1000.

In some examples, vehicle 1000 is an airplane, comprising a fuselagethat becomes narrower in the tail portion. In some examples, primarypair of seat tracks 1300 extends through a larger portion of thefuselage than, e.g., secondary pair of seat tracks 1310. In someexamples, first portions 1301 of primary pair of seat tracks 1300 arepositioned away from the tail portion (e.g., in a wing portion), whilesecond portions 1302 of primary pair of seat tracks 1300 are positionedin the tail portion. In some examples, second portions 1302 are obliquerelative to first portions 1301 to accommodate the shape of the fuselageand smaller space in the tail portion of the fuselage. In an example, aseat assembly positioned in the tail portion and supported by secondportions 1302 of primary pair of seat tracks 1300 has fewer seats than,for instance, a seat assembly, positioned away from the tail portion andsupported by first portions 1301 of primary pair of seat tracks 1300.Adding secondary pair of seat tracks 1310 in the tail portions enables,in some examples, the addition of more seats that could otherwise besupported by second portion 1302 of primary pair of seat tracks 1300.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, theseat tracks of secondary pair of seat tracks 1310 are each parallel tovirtual longitudinal axis 1010 of vehicle 1000. The preceding subjectmatter of this paragraph characterizes example 8 of the presentdisclosure, wherein example 8 also includes the subject matter accordingto example 7, above.

In some examples, arranging secondary pair of seat tracks 1310 parallelto virtual longitudinal axis 1010 of vehicle 1000 improves load-transfercharacteristics of vehicle 1000, as acceleration and deceleration ofvehicle 1000 typically occurs along virtual longitudinal axis 1010.Specifically, these loads are applied along the length of the seattracks of secondary pair of seat tracks 1310, rather than transversely,which improves load distribution. Furthermore, such orientation of theseat tracks in secondary pair of seat tracks 1310 may simplify theirattachment to floor beams 1020.

In some examples, floor beams 1020 are perpendicular to virtuallongitudinal plane 1012. As such, when the seat tracks of secondary pairof seat tracks 1310 are each parallel to virtual longitudinal axis 1010,then these seat tracks are also perpendicular to floor beams 1020,simplifying the attachment of secondary pair of seat tracks 1310 tofloor beams 1020. Furthermore, in some examples, such attachments areable to support larger loads than for example, when secondary pair ofseat tracks 1310 are not perpendicular to floor beams 1020.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, secondportions 1302 of the seat tracks of primary pair of seat tracks 1300 arenot parallel to either one of secondary pair of seat tracks 1310. Thepreceding subject matter of this paragraph characterizes example 9 ofthe present disclosure, wherein example 9 also includes the subjectmatter according to example 7 or 8, above.

In some examples, second portions 1302 of both seat tracks of primarypair of seat tracks 1300 extend in a part of vehicle 1000 that has lessspace than other parts of vehicle 1000 (e.g., a part where at least someof secondary pair of seat tracks 1310 are positioned). To avoidinterference with other components of vehicle 1000, in some examples theorientation of second portions 1302 of both seat tracks of primary pairof seat tracks 1300 is different than that of secondary pair of seattracks 1310.

In some example, second portions 1302 of both seat tracks of primarypair of seat tracks 1300 is positioned in a tail part of a fuselage.This tail portion is narrower than a middle part, in some examples, andless space is available for seats and seat tracks. Second portions 1302of both seat tracks of primary pair of seat tracks 1300 is not parallel(e.g., oblique) relative to either one of secondary pair of seat tracks1310, in some examples. As show in FIG. 3A, second portions 1302 of bothtracks of primary pair of seat tracks 1300 is angled toward virtuallongitudinal axis 1010 of vehicle 1000 as second portions 1302 protrudetoward the tail (and away from first portions 1301). Second portions1302 of both seat tracks of primary pair of seat tracks 1300 protrudesfurther toward the tail than secondary pair of seat tracks 1310, in someexamples.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, seating system 1100 further comprises second seat assembly 1210,comprising second seat support 1212 and second plurality of seats 1214,attached to second seat support 1212. Second seat support 1212 isattached to secondary pair of seat tracks 1310. The preceding subjectmatter of this paragraph characterizes example 10 of the presentdisclosure, wherein example 10 also includes the subject matteraccording to any one of examples 1 to 9, above.

Second seat assembly 1210 and first seat assembly 1200 are supported bydifferent pairs of seat tracks. Specifically, first seat assembly 1200is supported by primary pair of seat tracks 1300, while second seatassembly 1210 is supported by secondary pair of seat tracks 1310. Insome examples, second seat assembly 1210 replaces another seat assemblywhich has been previously supported by primary pair of seat tracks 1300.This replacement is performed, for example, to increase the passengercapacity of vehicle 1000.

For example, second seat assembly 1210 is replaced back with theoriginal seat assembly, which was replaced by second seat assembly 1210.As such, the seating configuration of vehicle 1000 is fully reversible.Primary pair of seat tracks 1300 is retained at all of its originallocations, in some examples.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, first seat support 1202 is geometrically different from secondseat support 1212. The preceding subject matter of this paragraphcharacterizes example 11 of the present disclosure, wherein example 11also includes the subject matter according to example 10, above.

The geometric difference between first seat support 1202 and second seatsupport 1212 allows aligning first plurality of seats 1204 with secondplurality of seats 1214 relative to virtual longitudinal plane 1012 evenwhen seat tracks supporting these seat assemblies are offset. In someexamples, the track offset is used to avoid interference between primarypair of seat tracks 1300 and secondary pair of seat tracks 1310.However, the alignment or a different offset of first plurality of seats1204 with second plurality of seats 1214 allows to have a straight aislewith a constant width.

Specifically, first seat assembly 1200 comprises first seat support 1202attached to primary pair of seat tracks 1300, while second seat assembly1210 comprises second seat support 1212 attached to secondary pair ofseat tracks 1310. As shown in FIG. 3A, secondary pair of seat tracks1310 is offset toward virtual longitudinal plane 1012 relative toprimary pair of seat tracks 1300 or, at least, relative to firstportions 1301 of primary pair of seat tracks 1300. As shown in FIG. 3B,each seat in first plurality of seats 1204 of first seat assembly 1200is generally aligned with one seat in second plurality of seats 1214 ofsecond seat assembly 1210 along virtual longitudinal axis 1010.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, first plurality of seats 1204 of first seat assembly 1200 isaligned with second plurality of seats 1214 of second seat assembly 1210along virtual longitudinal axis 1010 of vehicle 1000. The precedingsubject matter of this paragraph characterizes example 12 of the presentdisclosure, wherein example 12 also includes the subject matteraccording to example 10 or 11, above.

Aligning first plurality of seats 1204 of first seat assembly 1200 withsecond plurality of seats 1214 of second seat assembly 1210 alongvirtual longitudinal axis 1010 allows having a straight aisle extendingalong virtual longitudinal axis 1010 of vehicle 1000 as, for example,shown in FIG. 3B. Furthermore, passengers in second plurality of seats1214 have available to them the various convenience features of firstplurality of seats 1204, such as foldable trays, video displays, varioustypes of holders, and the like.

As shown in FIG. 3B, each seat in first plurality of seats 1204 of firstseat assembly 1200 is generally aligned with one seat in secondplurality of seats 1214 of second seat assembly 1210 along virtuallongitudinal axis 1010. In this example, the number of seats in firstplurality of seats 1204 and the number of seats in second plurality ofseats 1214 is the same. Furthermore, the seats (e.g., type, size) infirst plurality of seats 1204 and in second plurality of seats 1214 areidentical. When the seat numbers are different or different types ofseats are used in first plurality of seats 1204 and in second pluralityof seats 1214, midpoints of first plurality of seats 1204 and secondplurality of seats 1214 are aligned along virtual longitudinal axis 1010of vehicle 1000, in some examples.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, first plurality of seats 1204 of first seat assembly 1200comprises first inboard seat 1205, positioned closer to virtuallongitudinal plane 1012 of vehicle 1000 than all other seats in firstplurality of seats 1204. Second plurality of seats 1214 of second seatassembly 1210 comprises second inboard seat 1215, positioned closer tovirtual longitudinal plane 1012 than all other seats in second pluralityof seats 1214. First shortest distance D_(a) between first inboard seat1205 and virtual longitudinal plane 1012 is identical to second shortestdistance D_(b) between second inboard seat 1215 and virtual longitudinalplane 1012. The preceding subject matter of this paragraph characterizesexample 13 of the present disclosure, wherein example 13 also includesthe subject matter according to any one of examples 10 to 12, above.

Having the same shortest distance between inboard seats of differentrows of seats and virtual longitudinal plane 1012 provides for astraight aisle, defined at least in part by first inboard seat 1205 andsecond inboard seat 1215.

In this example, the aisle extends along virtual longitudinal plane1012. The straight aisle allows passengers to move and/or objects to bemoved within vehicle 1000 without extensive turning and bumping intoseats. Furthermore, the straight aisle is narrower than, for example, anaisle that non-linear. Narrower aisles allow to put more seats intovehicles 1000, thereby increasing the passenger capacity of vehicle1000.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, seats in first plurality of seats 1204 of first seat assembly1200 are arranged along first row-axis 1201. Seats in second pluralityof seats 1214 of second seat assembly 1210 are arranged along secondrow-axis 1211, parallel to first row-axis 1201. The preceding subjectmatter of this paragraph characterizes example 14 of the presentdisclosure, wherein example 14 also includes the subject matteraccording to any one of examples 10 to 13, above.

When first plurality of seats 1204 is parallel to second plurality ofseats 1214 or, more specifically, when second row-axis 1211 is parallelto first row-axis 1201, the spacing between first plurality of seats1204 and second plurality of seats 1214 is constant, in some examples.

This alignment and constant spacing allows passengers to easily accesssecond plurality of seats 1214, specifically the seats in secondplurality of seats 1214 that are further away from virtual longitudinalplane 1012. This constant spacing aspect also enables passengers, seatedin second plurality of seats 1214, to use the various features of theback sides of first plurality of seats 1204, such as foldable trays,displays, and the like. In some examples, the back sides of firstplurality of seats 1204 are utilized as safety features for passengers,seated in second plurality of seats 1214. The spacing between firstplurality of seats 1204 and second plurality of seats 1214 is defined bypairs of seats, each pair formed by one from first plurality of seats1204 and a corresponding one from second plurality of seats 1214.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3B, bothfirst row-axis 1201 and second row-axis 1211 are perpendicular tovirtual longitudinal plane 1012 of vehicle 1000. The preceding subjectmatter of this paragraph characterizes example 15 of the presentdisclosure, wherein example 15 also includes the subject matteraccording to example 14, above.

When first row-axis 1201 and second row-axis 1211 are perpendicular tovirtual longitudinal plane 1012, passengers seated in first plurality ofseats 1204 and second plurality of seats 1214 face in the direction,parallel to virtual longitudinal axis 1010. Considering that mostdeceleration and acceleration of vehicle 1000 occurs along virtuallongitudinal axis 1010, passenger comfort is improved with suchorientations of first plurality of seats 1204 and second plurality ofseats 1214.

For example, during deceleration of vehicle 1000, the back sides offirst plurality of seats 1204 are utilized as safety features forpassengers seated in second plurality of seats 1214. Similarly,passengers are generally more comfortable when acceleration of vehicle1000 occurs in the direction that is perpendicular to back supports (andhead rests) of their seats.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, first plurality of seats 1204 of first seat assembly 1200 andsecond plurality of seats 1214 of second seat assembly 1210 have equalnumbers of seats. The preceding subject matter of this paragraphcharacterizes example 16 of the present disclosure, wherein example 16also includes the subject matter according to any one of examples 10 to14, above.

The same number of seats in first plurality of seats 1204 and secondplurality of seats 1214, shown in FIG. 3B, is used to maximize theoverall seating capacity of vehicle, in comparison, for example, to aseat arrangement, shown in FIG. 3C. Furthermore, back supports of firstplurality of seats 1204 are used as safety features by passengers insecond plurality of seats 1214 during, for example, sudden decelerationof vehicle 1000. The same number of seats also enables passengers,seated in second plurality of seats 1214, to use the back sides of firstplurality of seats 1204 for various features such as tables-tops,displays, and the like.

Specifically, each seat in second plurality f seats 1214 has acorresponding seat in first plurality of seats 1204. In some examples,the back side of this seat in first plurality of seats 1204 is used tosupport these various features and utilized by a passenger in the seatof second plurality of seats 1214.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, each seat in first plurality of seats 1204 of first seatassembly 1200 is identical to any seat in second plurality of seats 1214of second seat assembly 1210. The preceding subject matter of thisparagraph characterizes example 17 of the present disclosure, whereinexample 17 also includes the subject matter according to any one ofexamples 10 to 16, above.

Identical seats occupy the same amount of space and, therefore, can beeasily aligned in vehicle 1000. Furthermore, seat assemblies havingidentical seats is easier to manufacture, in some examples.

For example, each seat in second plurality of seats 1214 has acorresponding seat in first plurality of seats 1204, and this pair ofseats is aligned. The alignment provides various comfort features for apassenger in a seat of second plurality of seats 1214.

Referring generally to FIG. 1 and particularly to, FIG. 3B, seatingsystem 1100 further comprises third seat assembly 1220, attached toprimary pair of seat tracks 1300. At least portion of second seatassembly 1210 is positioned between first seat assembly 1200 and thirdseat assembly 1220. The preceding subject matter of this paragraphcharacterizes example 18 of the present disclosure, wherein example 18also includes the subject matter according to any one of examples 10 to17, above.

Second seat assembly 1210 is positioned between first seat assembly 1200and third seat assembly 1220, but second seat assembly 1210 is attachedto a different pair of tracks. Specifically, first seat assembly 1200and third seat assembly 1220 are both attached to primary pair of seattracks 1300. Second seat assembly 1210 is attached to secondary pair ofseat tracks 1310 even though a portion of primary pair of seat tracks1300 extends under second seat assembly 1210. This portion of primarypair of seat tracks 1300 is not used for attachment of second seatassembly 1210 in at least one seat configuration. However, in anotherseat configuration, this portion of primary pair of seat tracks 1300 isused by another seat assembly, which would replace second seat assembly1210.

As shown in FIG. 3B, third seat assembly 1220 has a smaller number ofseats than second seat assembly 1210, in some examples. In theseexamples, third seat assembly 1220 does not extend the entire length ofsecond seat assembly 210, where the length of the second seat assemblyis defined in the direction perpendicular to virtual longitudinal plane1012. However, at least a portion of second seat assembly 1210 ispositioned between first seat assembly 1200 and third seat assembly1220. Another portion of second seat assembly 1210 extends outside thearea between first seat assembly 1200 and third seat assembly 1220, insome examples.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3B, thirdseat assembly 1220 comprises third plurality of seats 1224. Seats inthird plurality of seats 1224 are arranged along third row-axis 1221,oblique to virtual longitudinal plane 1012 of vehicle 1000. Thepreceding subject matter of this paragraph characterizes example 19 ofthe present disclosure, wherein example 19 also includes the subjectmatter according to example 18, above.

The oblique orientation, relative to virtual longitudinal plane 1012 ofvehicle 1000, enables third seat assembly 1220 to be positioned in apart of vehicle 1000 that has less space than another part, where firstseat assembly 1200 or second seat assembly 1210 is positioned.

For example, third seat assembly 1220 is positioned in a tail part of anaircraft that is narrower than a middle part of the aircraft. Theoblique orientation allows to position third seat assembly 1220 in thatpart without narrowing the aisle. In fact, the oblique orientation isused for making the aisle wider, in some examples. The change in theorientation angle (e.g., from perpendicular to oblique to virtuallongitudinal plane 1012) corresponds to the change in the number ofseats, in some examples. As shown in FIG. 3B, third plurality of seats1224 has two seats, while second plurality of seats 1214 has threeseats.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3B, firstplurality of seats 1204 of first seat assembly 1200 and third pluralityof seats 1224 of third seat assembly 1220 have different numbers ofseats. The preceding subject matter of this paragraph characterizesexample 20 of the present disclosure, wherein example 20 also includesthe subject matter according to example 19, above.

In some examples, type of seats, space available for the seats,orientation of the seats, and other factors determine the number ofseats in each assembly. In some examples, assemblies having differentnumber of seats are supported by the same tracks, e.g., by primary pairof seat tracks 1300.

In some examples, third seat assembly 1220 is positioned in a part ofvehicle 1000 that has less space than the part where first seat assembly1200 is positioned. In these examples, third plurality of seats 1224 ofthird seat assembly 1220 has have fewer seats than first plurality ofseats 1204 of first seat assembly 1200 as, for example, shown in FIG.3B. Both third seat assembly 1220 and first seat assembly 1200 areattached to and supported by primary pair of seat tracks 1300.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3C,seating system 1100 further comprises third seat assembly 1220 andfourth seat assembly 1230, both attached to primary pair of seat tracks1300. At least a portion of fourth seat assembly 1230 is positionedbetween first seat assembly 1200 and third seat assembly 1220. Thepreceding subject matter of this paragraph characterizes example 21 ofthe present disclosure, wherein example 21 also includes the subjectmatter according to any one of examples 1 to 17, above.

In some examples, fourth seat assembly 1230 is interchangeable withsecond seat assembly 1210 in the space between first seat assembly 1200and third seat assembly 1220. In these examples, the ability to changeseat assemblies is used to increase seating capacity, increase aislespace, and for other purposes.

For example, the seating capacity can be reduced by replacing secondseat assembly 1210 with fourth seat assembly 1230 as schematically shownin FIGS. 3B and 3C. Furthermore, different seat configurations utilizedifferent seat tracks, but both primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310 are available in that location.Specifically, when second seat assembly 1210 is installed, second seatassembly 1210 is attached to secondary pair of seat tracks 1310.However, when fourth seat assembly 1230 is installed, fourth seatassembly 1230 is attached to primary pair of seat tracks 1300.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3C, fourthseat assembly 1230 comprises fourth plurality of seats 1234. Seats infourth plurality of seats 1234 are arranged along fourth row-axis 1231,oblique to virtual longitudinal plane 1012 of vehicle 1000. Thepreceding subject matter of this paragraph characterizes example 22 ofthe present disclosure, wherein example 22 also includes the subjectmatter according to example 21, above.

The oblique orientation, relative to virtual longitudinal plane 1012 ofvehicle 1000, allows to position fourth seat assembly 1230 in a part ofvehicle 1000 that has less space than another part, for example, a partwhere first seat assembly 1200 or second seat assembly 1210 arepositioned. Furthermore, in some examples, fourth plurality of seats1234 is oblique relative to virtual longitudinal plane 1012 so thatfourth plurality of seats 1234 is parallel to third plurality of seats1224. This ensures that the space between fourth plurality of seats 1234and third plurality of seats 1224 is uniform and allows passengers toaccess third plurality of seats 1224 with minimal effort.

For example, fourth seat assembly 1230 is positioned in a tail part ofan aircraft that is narrower than a middle part of the aircraft. Theoblique orientation allows to position fourth seat assembly 1230 in thatpart without narrowing the aisle. In these examples, the obliqueorientation is used for making the aisle wider. Furthermore, therelative arrangement of third plurality of seats 1224 and fourthplurality of seats 1234 enables passengers, seated in third plurality ofseats 1224, to use the back side of fourth plurality of seats 1234 foraccess to various features, such as foldable trays, displays, and thelike.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3C, firstplurality seats 1204 of first seat assembly 1200 and fourth plurality ofseats 1234 of fourth seat assembly 1230 have different numbers of seats.The preceding subject matter of this paragraph characterizes example 23of the present disclosure, wherein example 23 also includes the subjectmatter according to example 22, above.

The different numbers of seats in fourth plurality of seats 1234 allowspositioning fourth seat assembly 1230 in a location of vehicle 1000 thathas different amount of space than, for example, a location where firstseat assembly 1200 is positioned. Primary pair of seat tracks 1300extend through both of these locations and support both first seatassembly 1200 and fourth seat assembly 1230.

In one example, fourth seat assembly 1230 is positioned in a part ofvehicle 1000 that has less space than the part where first seat assembly1200 is positioned. In this example, fourth plurality of seats 1234 offourth seat assembly 1230 has fewer seats than first plurality of seats1204 of first seat assembly 1200 as shown, e.g., in FIG. 3B. Fewer seatsthan the number of seats in first plurality of seats 1204 ensures that aminimum width of an aisle is maintained.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3C, thirdseat assembly 1220 comprises third plurality of seats 1224. Thirdplurality of seats 1224 and fourth plurality of seats 1234 of fourthseat assembly 1230 have equal numbers of seats. The preceding subjectmatter of this paragraph characterizes example 24 of the presentdisclosure, wherein example 24 also includes the subject matteraccording to example 22 or 23, above.

The same number of seats in third plurality of seats 1224 and fourthplurality of seats 1234 is used, for example, when the same or similaramount of space is available for corresponding seat assemblies.Furthermore, the same number of seats in third plurality of seats 1224and fourth plurality of seats 1234 allows passengers, seated in theseats of third plurality of seats 1224, to utilize the back sides of theseats in fourth plurality of seats 1234 for access to variousconvenience features, especially when individual seats in thirdplurality of seats 1224 and fourth plurality of seats 1234 are aligned.

In some examples, the back sides of the seats in fourth plurality ofseats 1234, which are positioned in front of third plurality of seats1224 include foldable trays, displays, and/or other like features, foruse by passengers in the seats of third plurality of seats 1224. Inthese examples, each seat in third plurality of seats 1224 has acorresponding seat in fourth plurality of seats 1234 and the backside ofthis seat in fourth plurality of seats 1234 is used to support thesevarious features.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 7, vehicle1000 is one of an aircraft, a watercraft, or land vehicle. The precedingsubject matter of this paragraph characterizes example 25 of the presentdisclosure, wherein example 25 also includes the subject matteraccording to any one of examples 1 to 24, above.

An aircraft, a watercraft, or an automobile are all examples of vehicle1000 carrying many passengers. In some examples, changing seatingconfigurations in such types of vehicles is used increase or decreaseseating capacity, changing aisle width, and other purposes. Furthermore,seating system 1100, described herein, can be easily reconfigured by anoperator of vehicle 1000 without, for example, involving themanufacturer.

Different seat assemblies in vehicle 1000 are attached to and supportedby various seat tracks. Using secondary pair of seat tracks 1310 inaddition to primary pair of seat tracks 1300 allows using different seatconfigurations, to maximize passenger capacity, providing additionalisle space, and the like.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B and4B, seating-system kit 1500 for vehicle 1000 is disclosed. Vehicle 1000comprises floor beams 1020, primary pair of seat tracks 1300, attachedto floor beams 1020, and first seat assembly 1200. First seat assembly1200 comprises first seat support 1202 and first plurality of seats1204, attached to first seat support 1202. First seat support 1202 isattached to primary pair of seat tracks 1300. Floor beams 1020 supportfloor panels 1060 that define floor surface 1062. Vehicle 1000 hasvirtual longitudinal plane 1012, perpendicular to floor surface 1062.Vehicle 1000 also has virtual longitudinal axis 1010, parallel to floorsurface 1062 and lying in virtual longitudinal plane 1012.Seating-system kit 1500 comprises secondary pair of seat tracks 1310 andsecond seat assembly 1210. Second seat assembly 1210 comprises secondseat support 1212 and second plurality of seats 1214, attached to secondseat support 1212. Second seat support 1212 is configured to be attachedto secondary pair of seat tracks 1310. The preceding subject matter ofthis paragraph characterizes example 26 of the present disclosure.

Seating-system kit 1500 allows new seating configurations in vehicle1000. In some examples, a seat assembly, having a fewer number of seats,is replaced with second seat assembly 1210, having a larger number ofseats, thereby increasing the overall seating capacity of vehicle 1000.Adding secondary pair of seat tracks 1310 also allows to reconfigurevehicle 1000 without disturbing primary pair of seat tracks 1300positioned on vehicle 1000. Furthermore, having both primary pair ofseat tracks 1300 and secondary pair of seat tracks 1310 allows for quickreconfiguration of vehicle 1000. Primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310 are configured and used to supportdifferent types of seat assemblies (e.g., seat assemblies with differentnumber of seats). These types of seat assemblies are interchangeable inthe same general location. One seat assembly is used, for example, toincrease the seating capacity of vehicle 1000, while another seatassembly is used, for example, to increase aisle space.

In some examples, second seat assembly 1210 is used to replace adifferent type of seat assembly in vehicle 1000, e.g., a seat assemblywith fewer seats. However, second seat assembly 1210 is configured to beattached and supported by secondary pair of seat tracks 1310, while thereplaced seat assembly has been previously attached and supported byprimary pair of seat tracks 1310.

In some examples, secondary pair of seat tracks 1310 and second seatassembly 1210 are supplied as seating-system kit 1500 to an operator ofvehicle 1000 to enable the operator to change the seating configurationof vehicle 1000. Second seat assembly 1210 is added to primary pair ofseat tracks 1300, rather than replacing primary pair of seat tracks1300. As such either second seat assembly 1210 or primary pair of seattracks 1300 is available for supporting one or more seat assemblies at acertain location in vehicle 1000. In some examples, primary pair of seattracks 1300 extends beyond this location and be used for supportingother seat assemblies.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A,secondary pair of seat tracks 1310 is configured to be attached to floorbeams 1020 of vehicle 1000 such that one seat track of secondary pair ofseat tracks 1310 is positioned between seat tracks of primary pair ofseat tracks 1300. The preceding subject matter of this paragraphcharacterizes example 27 of the present disclosure, wherein example 27also includes the subject matter according to example 26, above.

Positioning one of secondary pair of seat tracks 1310 between seattracks of primary pair of seat tracks 1300 enables the tracks of bothpairs to avoid interference with each other. Secondary pair of seattracks 1310 is configured to attach to floor beams 1020, which alsosupport primary pair of seat tracks 1300. Specifically, in someexamples, secondary pair of seat tracks 1310 is shifted relative primarypair of seat tracks 1300 in the direction perpendicular to virtuallongitudinal plane 1012. When the degree of shift is less than the widthof primary pair of seat tracks 1300, only one of secondary pair of seattracks 1310 is positioned between seat tracks of primary pair of seattracks 1300. In some examples, the degree of shift is minimal to ensurethat seat assemblies supported by primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310 are aligned along virtuallongitudinal axis 1010.

Positioning only one of secondary pair of seat tracks 1310 between theseat tracks of primary pair of seat tracks 1300 also allows using seattracks with similar track widths. A certain minimum track width is used,in some examples, to provide support to seat assemblies, attached toprimary pair of seat tracks 1300 and secondary pair of seat tracks 1310.In some examples, the track widths of primary pair of seat tracks 1300and secondary pair of seat tracks 1310 are constant and aresubstantially the same (e.g., varying by less than 10% or even varyingby less than 5%). This feature also enables the combination ofnon-linear and straight tracks without interference. For example, FIG.3A illustrates primary pair of seat tracks 1300 having first portions1301 and second portions 1302, oblique to first portions 1301. Secondarypair of seat tracks 1310 are straight.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3A and4A, only one of secondary pair of seat tracks 1310 is configured to bepositioned between seat tracks of primary pair of seat tracks 1300. Thepreceding subject matter of this paragraph characterizes example 28 ofthe present disclosure, wherein example 28 also includes the subjectmatter according to example 27, above.

Positioning one of secondary pair of seat tracks 1310 between the seattracks of primary pair of seat tracks 1300 allows to avoid interferencebetween secondary pair of seat tracks 1310 and primary pair of seattracks 1300. Specifically, secondary pair of seat tracks 1310 is shiftedrelative primary pair of seat tracks 1300 in the direction,perpendicular to virtual longitudinal plane 1012. When the degree ofshift is less than the width of primary pair of seat tracks 1300, onlyone of secondary pair of seat tracks 1310 is positioned between seattracks of primary pair of seat tracks 1300. In some examples, the degreeof shift is minimal to ensure that seat assemblies supported by primarypair of seat tracks 1300 and secondary pair of seat tracks 1310 arealigned along virtual longitudinal axis 1010.

Positioning only one of secondary pair of seat tracks 1310 between theseat tracks of primary pair of seat tracks 1300 also enables the use ofseat tracks with similar track widths. A certain minimum track width isused, in some examples, to provide support to seat assemblies attachedto primary pair of seat tracks 1300 and secondary pair of seat tracks1310, particularly in when vehicle 1000 is moving. In some examples, thetrack widths of primary pair of seat tracks 1300 and secondary pair ofseat tracks 1310 are constant and are substantially the same (e.g.,varying by less than 10% or even varying by less than 5%). This featuresalso allows combining bend and straight tracks without interference. Forexample, FIG. 3A illustrates primary pair of seat tracks 1300 havingfirst portions 1301 and second portions 1302 oblique to first portions1301. Secondary pair of seat tracks 1310 are straight.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3A and4B, only one of secondary pair of seat tracks 1310 is configured to bepositioned between seat tracks of primary pair of seat tracks 1300 alongan entire length of secondary pair of seat tracks 1310. The precedingsubject matter of this paragraph characterizes example 29 of the presentdisclosure, wherein example 29 also includes the subject matteraccording to example 27 or 28, above.

Positioning one of secondary pair of seat tracks 1310 between the seattracks of primary pair of seat tracks 1300 along the entire length ofsecondary pair of seat tracks 1310 avoids interference between secondarypair of seat tracks 1310 and primary pair of seat tracks 1300 along thatlength. Furthermore, positioning one of secondary pair of seat tracks1310 between seat tracks of primary pair of seat tracks 1300 along theentire length of secondary pair of seat tracks 1310 provides support tosecondary pair of seat tracks 1310 along its entire length and allowsusing secondary pair of seat tracks 1310 that is shorter and, therefore,have lower weight without sacrificing support and load distributioncharacteristics of seating system 1100.

When installed, primary pair of seat tracks 1300 and secondary pair ofseat tracks 1310 are both attached to the same set of floor beams 1020.In some examples, primary pair of seat tracks 1300 is longer and isattached to a larger number of floor beams 1020 (than secondary pair ofseat tracks 1310), thereby allowing more uniform load distribution. Thesame set of floor beams 1020, to which both primary pair of seat tracks1300 and secondary pair of seat tracks 1310 are attached. allows forload redistribution between primary pair of seat racks 1300 andsecondary pair of seat tracks 1310.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, only aportion of one of primary pair of seat tracks 1300 is configured to bepositioned between seat tracks of secondary pair of seat tracks 1310.The preceding subject matter of this paragraph characterizes example 30of the present disclosure, wherein example 30 also includes the subjectmatter according to any one of examples 27 to 29, above.

In some examples, primary pair of seat tracks 1300 is longer thansecondary pair of seat tracks 1310 such that only portion of one ofprimary pair of seat tracks 1300 is positioned between seat tracks ofsecondary pair of seat tracks 1310. As such, primary pair of seat tracks1300 is configured to support a larger number of seat assemblies thansecondary pair of seat tracks 1310. The portion of one of primary pairof seat tracks 1300, which is positioned between seat tracks ofsecondary pair of seat tracks 1310, corresponds to a location in vehicle1000 where different seat assemblies can be supported by either primarypair of seat tracks 1300 or secondary pair of seat tracks 1310.

This orientation of primary pair of seat tracks 1300 and secondary pairof seat tracks 1310 allows to reconfigure vehicle 1000 or, morespecifically, to change the seating configuration of vehicle 1000. Theseating configuration can be changed where both primary pair of seattracks 1300 and secondary pair of seat tracks 1310 are available, whichis where the portion of one of primary pair of seat tracks 1300 ispositioned between seat tracks of secondary pair of seat tracks 1310.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A,secondary pair of seat tracks 1310 is configured to be attached to floorbeams 1020 of vehicle 1000 such that each of secondary pair of seattracks 1310 is parallel to virtual longitudinal axis 1010 of vehicle1000. The preceding subject matter of this paragraph characterizesexample 31 of the present disclosure, wherein example 31 also includesthe subject matter according to any one of examples 26 to 30, above.

Seat tracks being parallel to virtual longitudinal axis 1010 of vehicle1000 improves the comfort aspect of vehicle 1000, in some examples, asacceleration and deceleration of vehicle 1000 typically occurs alongvirtual longitudinal axis 1010. Specifically, the loads are appliedalong the length of the seat tracks of secondary pair of seat tracks1310, rather than across these seat tracks. As such, secondary pair ofseat tracks 1310 is configured to support larger loads in thelongitudinal direction. Furthermore, such orientation of the seat tracksin secondary pair of seat tracks 1310 simplifies their attachment tofloor beams 1020, in some examples.

In some examples, floor beams 1020 are perpendicular to virtuallongitudinal plane 1012. As such, when the seat tracks of secondary pairof seat tracks 1310 are each parallel to virtual longitudinal axis 1010,then these seat tracks are also perpendicular to floor beams 1020,simplifying the attachment of secondary pair of seat tracks 1310 tofloor beams 1020. In some examples, such attachment also supports largerloads, e.g., when secondary pair of seat tracks 1310 are notperpendicular to floor beams 1020.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, eachseat track of secondary pair of seat tracks 1310 is straight. Thepreceding subject matter of this paragraph characterizes example 32 ofthe present disclosure, wherein example 32 also includes the subjectmatter according to any one of examples 26 to 31, above.

In some examples, straight tracks are easier to fabricate, transport,and install on vehicle 1000 than, for example, tracks with a bend.Furthermore, straight tracks are able support larger loads particularlyin the direction, parallel to the tracks.

In some examples, secondary pair of seat tracks 1310 are shorter thanprimary pair of seat tracks 1300 and are straight even when positionedin a narrowing portion of vehicle 1000 or between primary pair of seattracks 1300 than have oblique portions.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, seattracks of secondary pair of seat tracks 1310 have identical lengths. Thepreceding subject matter of this paragraph characterizes example 33 ofthe present disclosure, wherein example 33 also includes the subjectmatter according to any one of examples 26 to 32, above.

The identical length of the seat tracks of secondary pair of seat tracks1310 enables interchangeable use of these tracks. Secondary pair of seattracks 1310, having identical lengths, are easier to fabricate,transport, and install on vehicle 1000.

In some examples, the length of seat tracks of secondary pair of seattracks 1310 spans multiple floor beams 1020, spreading the load exertedonto secondary pair of seat tracks 1310. Both seat tracks of secondarypair of seat tracks 1310 are attached to the same set of floor beams1020 to ensure even support to second seat assembly 1210, supported bysecondary pair of seat tracks 1310.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3A, eachof secondary pair of seat tracks 1310 is shorter than each of primarypair of seat tracks 1300. The preceding subject matter of this paragraphcharacterizes example 34 of the present disclosure, wherein example 34also includes the subject matter according to any one of examples 26 to33, above.

In some examples, the length of seat tracks is kept to a minimum toreduce the overall weight of vehicle 1000. Since secondary pair of seattracks 1310 is used to support fewer seat assemblies than primary pairof seat tracks 1300, the length of secondary pair of seat tracks 1310 isless than the length of primary pair of seat tracks 1300, in someexamples.

In some examples, primary pair of seat tracks 1300 are used to supportseat assemblies outside of area of secondary pair of seat tracks 1310.In an example shown in FIG. 3B, primary pair of seat tracks 1300supports first seat assembly 1200 and third seat assembly 1220, whilesecondary pair of seat tracks 1310 supports second seat assembly 1210,positioned between first seat assembly 1200 and third seat assembly1220. The continuity of primary pair of seat tracks 1300 is used toprovide different seat configuration of vehicle 1000, in some examples.As shown in FIG. 3C, second seat assembly 1210 is replaced with fourthseat assembly 1230, which is supported by primary pair of seat tracks1300.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 4A, 4B,and 5B, each seat track of secondary pair of seat tracks 1310 and eachseat track of primary pair of seat tracks 1300 have identical widths.The preceding subject matter of this paragraph characterizes example 35of the present disclosure, wherein example 35 also includes the subjectmatter according to any one of examples 26 to 34, above.

In some examples, the seat tracks of secondary pair of seat tracks 1310and of primary pair of seat tracks 1300 are substantially the same or,more specifically, have each of these seat tracks identical widths. Thissimilarity allows using similar mounting points for seat supports, usingsimilar hardware for attaching these seat tracks to floor beams, andsimplifying fabrication of these seat tracks.

The widths of each seat track of secondary pair of seat tracks 1310 andeach seat track of primary pair of seat tracks 1300 are measured in thedirections perpendicular to their respective longest dimensions. In someexamples, the cross-sections of each seat track of secondary pair ofseat tracks 1310 and each seat track of primary pair of seat tracks 1300is identical in these directions. An example of the cross-section of oneseat track of secondary pair of seat tracks 1310 is shown in FIG. 5B.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, first plurality of seats 1204 of first seat assembly 1200 andsecond plurality of seats 1214 of second seat assembly 1210 have equalnumbers of seats. The preceding subject matter of this paragraphcharacterizes example 36 of the present disclosure, wherein example 36also includes the subject matter according to any one of examples 26 to35, above.

The same number of seats in first plurality of seats 1204 and secondplurality of seats 1214, shown, for example, in FIG. 3B is used tomaximize the overall seating capacity of vehicle, in comparison to aseat arrangement, shown, for example, in FIG. 3C. Furthermore, backsupports of first plurality of seats 1204 are used as safety features bypassengers in second plurality of seats 1214 during, for example, suddendeceleration of vehicle 1000. The same number of seats also enablespassengers, seated in second plurality of seats 1214, to use the backsides of first plurality of seats 1204 for access to various conveniencefeatures, such as foldable trays, displays, and the like.

Specifically, each seat in second plurality of seats 1214 has acorresponding seat in first plurality of seats 1204. The back side ofthis seat in first plurality of seats 1204 is used to support thesevarious features, utilized by a passenger in the seat of secondplurality of seats 1214, in some examples.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 4A and4B, second seat support 1212 is geometrically different from first seatsupport 1202. The preceding subject matter of this paragraphcharacterizes example 37 of the present disclosure, wherein example 37also includes the subject matter according to any one of examples 26 to36, above.

The geometric difference between first seat support 1202 and second seatsupport 1212 allows aligning first plurality of seats 1204 with secondplurality of seats 1214 relative to virtual longitudinal plane 1012 evenwhen seat tracks supporting these seat assemblies are offset. The trackoffset is used, for example, to avoid interference between primary pairof seat tracks 1300 and secondary pair of seat tracks 1310. However, thealignment or a different offset of first plurality of seats 1204 withsecond plurality of seats 1214 enables a straight aisle with a constantwidth.

Specifically, first seat assembly 1200 comprises first seat support 1202attached to primary pair of seat tracks 1300, while second seat assembly1210 comprises second seat support 1212 attached to secondary pair ofseat tracks 1310. As shown in FIG. 3A, secondary pair of seat tracks1310 is offset toward virtual longitudinal plane 1012 relative toprimary pair of seat tracks 1300 or, at least, relative to firstportions 1301 of primary pair of seat tracks 1300. As shown in FIG. 3B,each seat in first plurality of seats 1204 of first seat assembly 1200is generally aligned with one seat in second plurality of seats 1214 ofsecond seat assembly 1210 along virtual longitudinal axis 1010.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 7, secondplurality of seats 1214 of second seat assembly 1210 comprises one ofplurality of aircraft seats, plurality of watercraft seats, or pluralityof land-vehicle seats. The preceding subject matter of this paragraphcharacterizes example 38 of the present disclosure, wherein example 38also includes the subject matter according to any one of examples 26 to37, above.

An aircraft, a watercraft, or an automobile are all examples of vehicle1000 carrying many passengers. Changing seating configurations in suchtypes of vehicles is used, for example, to increase or decrease seatingcapacity, changing aisle width, and other purposes. Furthermore, seatingsystem 1100 described herein can be easily reconfigured by an operatorof vehicle 1000 without, for example, involving the manufacturer.

In some examples, different seat assemblies in vehicle 1000 are attachedto and supported by various seat tracks. Using secondary pair of seattracks 1310 in addition to primary pair of seat tracks 1300 allows usingdifferent seat configurations, e.g., to maximize passenger capacity,providing additional isle space, and the like.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B and4B, second plurality of seats 1214 of second seat assembly 1210comprises three seats. The preceding subject matter of this paragraphcharacterizes example 39 of the present disclosure, wherein example 39also includes the subject matter according to any one of examples 26 to38, above.

Second seat assembly 1210 is used to replace another seat assembly withfewer seats, thereby increasing the overall seating capacity of thevehicle. Furthermore, the number of seats in second plurality of seats1214 is selected, for example, to provide various safety and comfortfeatures for passengers in other pluralities of seats, e.g., a pluralityof seats behind second plurality of seats 1214.

For example, this other seat assembly is positioned in a tail portion ofthe aircraft between an isle and a fuselage and includes only two seats.A combination of secondary pair of seat tracks 1310 and second pluralityof seats 1214 is specifically designed, for example, to accommodate anadditional seat in the same location as shown in FIGS. 3B and 4B.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3B, secondseat assembly 1210 is configured to be positioned between first seatassembly 1200 and third seat assembly 1220, comprising third pluralityof seats 1224. Second plurality of seats 1214 of second seat assembly1210 and third plurality of seats 1224 have different numbers of seats.The preceding subject matter of this paragraph characterizes example 40of the present disclosure, wherein example 40 also includes the subjectmatter according to any one of examples 26 to 39, above.

Type of seats, space available for the seats, orientation of the seats,and other factors determine the number of seats in each assembly, insome examples. However, assemblies having different numbers of seats aresupported by the same tracks (primary pair of seat tracks 1300 in someexamples).

For example, third seat assembly 1220 is positioned in a part of vehicle1000 that has less space than the part where first seat assembly 1200 ispositioned. As such, third plurality of seats 1224 of third seatassembly 1220 has fewer seats than first plurality of seats 1204 offirst seat assembly 1200 as shown, for example, in FIG. 3B. Both thirdseat assembly 1220 and first seat assembly 1200 are attached to andsupported by primary pair of seat tracks 1300.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3C,seating-system kit 1500 further comprises fourth seat assembly 1230,comprising fourth seat support 1232 and fourth plurality of seats 1234,attached to fourth seat support 1232. Fourth seat assembly 1230 isconfigured to be positioned, in lieu of second seat assembly 1210,between first seat assembly 1200 and third seat assembly 1220,comprising third plurality of seats 1224. Fourth seat support 1232 isconfigured to be attached to primary pair of seat tracks 1300. Fourthplurality of seats 1234 of fourth seat assembly 1230 and third pluralityof seats 1224 have identical numbers of seats. The preceding subjectmatter of this paragraph characterizes example 41 of the presentdisclosure, wherein example 41 also includes the subject matteraccording to any one of examples 26 to 39, above.

In some examples, fourth seat assembly 1230 is interchangeable withsecond seat assembly 1210 in a space between first seat assembly 1200and third seat assembly 1220. A combination of fourth seat assembly 1230and second seat assembly 1210 is used to change the seatingconfiguration of vehicle 1000.

For example, depending on the number of seats needed in vehicle 1000,either second seat assembly 1210 or fourth seat assembly 1230 ispositioned in that space as schematically shown in FIGS. 3B and 3C.Different seat configurations utilize different seat tracks.Specifically, when second seat assembly 1210 is positioned in thatspace, second seat assembly 1210 is attached to secondary pair of seattracks 1310. However, when fourth seat assembly 1230 is positioned inthe space, fourth seat assembly 1230 is attached to primary pair of seattracks 1300.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B and3C, second plurality of seats 1214 of second seat assembly 1210 andfourth plurality of seats 1234 of fourth seat assembly 1230 havedifferent numbers of seats. The preceding subject matter of thisparagraph characterizes example 42 of the present disclosure, whereinexample 42 also includes the subject matter according to example 41,above.

In some examples, fourth seat assembly 1230 is interchangeable withsecond seat assembly 1210 in a space between first seat assembly 1200and third seat assembly 1220 and used to change the seatingconfiguration of vehicle 1000.

In some examples, fourth seat assembly 1230 is used to increase thewidth of an aisle, while second seat assembly 1210 is used to increasethe overall seating capacity of vehicle 1000. Once secondary pair ofseat tracks 1310 is installed (e.g., attached to floor beams 1020),either fourth seat assembly 1230 or second seat assembly 1210 is usedinterchangeably allowing to reconfigure vehicle 1000 with minimalefforts.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 3B, seatsin second plurality of seats 1214 of second seat assembly 1210 areconfigured to be arranged along second row-axis 1211. Second seatsupport 1212 is configured to be attached to secondary pair of seattracks 1310 such that second row-axis is perpendicular to virtuallongitudinal plane 1012 of vehicle 1000. The preceding subject matter ofthis paragraph characterizes example 43 of the present disclosure,wherein example 43 also includes the subject matter according to any oneof examples 26 to 42, above.

When second row-axis 1211 are perpendicular to virtual longitudinalplane 1012, passengers seated in second plurality of seats 1214 face inthe direction parallel to virtual longitudinal axis 1010. Consideringthat most deceleration and acceleration of vehicle 1000 occurs alongvirtual longitudinal axis 1010, passenger convenience is improved withsuch orientations of second plurality of seats 1214.

Furthermore, when both first row-axis 1201 and second row-axis 1211 areperpendicular to virtual longitudinal plane 1012 as shown, for example,in FIG. 3B, elements on the back sides of first plurality of seats 1204are utilized, for example, as convenience features for passengers seatedin second plurality of seats 1214. Similarly, passengers are morecomfortable and when acceleration of vehicle 1000 occurs in thedirection that is perpendicular to back supports (and head rests) oftheir seats.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, first plurality of seats 1204 is configured to align with secondplurality of seats 1214 along virtual longitudinal axis 1010. Thepreceding subject matter of this paragraph characterizes example 44 ofthe present disclosure, wherein example 44 also includes the subjectmatter according to any one of examples 26 to 43, above.

Aligning first plurality of seats 1204 of first seat assembly 1200 withsecond plurality of seats 1214 of second seat assembly 1210 alongvirtual longitudinal axis 1010 allows having a straight aisle, extendingalong virtual longitudinal axis 1010 of vehicle 1000, as shown, forexample, in FIG. 3B. Furthermore, passengers in second plurality ofseats 1214 are able to use various features of first plurality of seats1204, such as foldable trays, attached to back supports of firstplurality of seats 1204, video displays, positioned in the backsupports, various types of holders, and the like.

As shown in FIG. 3B, each seat in first plurality of seats 1204 of firstseat assembly 1200 is generally aligned with one seat in secondplurality of seats 1214 of second seat assembly 1210 along virtuallongitudinal axis 1010. In this example, the number of seats in firstplurality of seats 1204 and the number of seats in second plurality ofseats 1214 is the same. Furthermore, the seats (e.g., type, size) infirst plurality of seats 1204 and in second plurality of seats 1214 areidentical. When the numbers of seats are different or different types ofseats are used in first plurality of seats 1204 and in second pluralityof seats 1214, midpoints of first plurality of seats 1204 and secondplurality of seats 1214 is aligned along virtual longitudinal axis 1010of vehicle 1000.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 3B, 4A,and 4B, first plurality of seats 1204 comprises first inboard seat 1205,positioned closer to virtual longitudinal plane 1012 than all otherseats in first plurality of seats 1204. Second plurality of seats 1214comprises second inboard seat 1215, positioned closer to virtuallongitudinal plane 1012 than all other seats in second plurality ofseats 1214. First shortest distance D_(a) between first inboard seat1205 and virtual longitudinal plane 1012 is identical to second shortestdistance D_(b) between second inboard seat 1215 and virtual longitudinalplane 1012. The preceding subject matter of this paragraph characterizesexample 45 of the present disclosure, wherein example 45 also includesthe subject matter according to any one of examples 26 to 44, above.

Having the same shortest distance between inboard seats of differentrows of seats and virtual longitudinal plane 1012 allows having astraight aisle, defined at least in part by first inboard seat 1205 andsecond inboard seat 1215.

In this example, the aisle extends along virtual longitudinal plane1012. The straight aisle allows passengers to move and/or objects to bemoved within vehicle 1000 without extensive turning and bumping intoseats. Furthermore, the straight aisle is narrower than, for example, anaisle that is non-linear. Narrower aisles allow to put more seats intovehicles 1000, thereby increasing the passenger capacity of vehicle1000.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5B,seating-system kit 1500 for vehicle 1000 is disclosed. Vehicle 1000comprises floor beams 1020 and primary pair of seat tracks 1300,attached to floor beams 1020. Seating-system kit 1500 comprisessecondary pair of seat tracks 1310, plurality of struts 1410, doubler1460, and spacer 1440. Plurality of struts 1410 comprises at least oneof first strut 1420 or second strut 1430 and is configured to provide acoupling interface between secondary pair of seat tracks 1310 and floorbeams 1020. Doubler 1460 is configured to at least partially coveropening 1023 in one of floor beams 1020. Spacer 1440 is configured to bepositioned in opening 1023 in one of floor beams 1020. At least portionof spacer 1440 is between doubler 1460 and second strut 1430 when secondstrut 1430 and doubler 1460 are attached to one of floor beams 1020.First strut 1420 is geometrically different from second strut 1430. Thepreceding subject matter of this paragraph characterizes example 46 ofthe present disclosure.

In some examples, seating-system kit 1500 is used to form new seatingconfigurations in vehicle 1000, which has an original seating systemwith limited or no ability to reconfigure. During installation ofseating-system kit 1500, secondary pair of seat tracks 1310 is added tovehicle 1000 that allows to reconfigure vehicle 1000 without disturbingprimary pair of seat tracks 1300 positioned on vehicle 1000. Forexample, a seat assembly having a fewer number of seats and supported byprimary pair of seat tracks 1300 is replaceable with second seatassembly 1210 having a larger number of seats and now supportedsecondary pair of seat tracks 1310, thereby increasing the overallseating capacity of vehicle 1000. Furthermore, having both primary pairof seat tracks 1300 and secondary pair of seat tracks 1310 on vehicle1000 (by adding secondary pair of seat tracks 1310 to primary pair ofseat tracks 1300 rather than replacing primary pair of seat tracks 1300with secondary pair of seat tracks 1310) allows for quickreconfiguration of vehicle 1000.

Referring to various components of seating-system kit 1500, secondarypair of seat tracks 1310 is used for supporting second seat assembly1210, which is replaceable with another seat assembly previouslysupported by primary pair of seat tracks 1300, once secondary pair ofseat tracks 1310 is installed. Plurality of struts 1410 is used forattaching secondary pair of seat tracks 1310 to floor beams 1020 or,more specifically, to provide a coupling interface. Plurality of struts1410 comprises at least one of first strut 1420 or second strut 1430. Insome examples, first strut 1420 is used for attachment of secondary pairof seat tracks 1310 to some portions of floor beams 1020 (e.g., freefrom openings) while second strut 1430 is used for attachment to otherportions of floor beams 1020 (e.g., near the opening). First strut 1420is geometrically different from second strut 1430 to achieve differentfunctionalities. In some examples, plurality of struts 1410 includesonly one or more of first struts 1420, only one or more of second struts1430, or a combination of one or more of first struts 1420 and one ormore of second struts 1430. Doubler 1460 is used in locations where oneof floor beams 1020 has opening 1023, e.g., to reinforce one of floorbeams 1020 around opening 1023. When spacer 1440 is used, spacer 1440 ispositioned in opening 1023 to bridge the space between doubler 1460 and,for example, second strut 1430 when second strut 1430 and doubler 1460are attached to one of floor beams 1020.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5C-1 and5C-2, first strut 1420 comprises two first parallel side walls 1422 andfirst face wall 1424 that connects two first parallel side walls 1422.Second strut 1430 comprises two second parallel side walls 1432. Secondstrut 1430 also comprises second face wall 1434, connecting two secondparallel side walls 1432. Second strut 1430 additionally comprises tabs1436, extending from opposite sides of second face wall 1434 andperpendicular to two second parallel side walls 1432. The precedingsubject matter of this paragraph characterizes example 47 of the presentdisclosure, wherein example 47 also includes the subject matteraccording to example 46, above.

In some examples, first strut 1420 and/or second strut 1430 is used forattaching secondary pair of seat tracks 1310 to different portions offloor beams 1020. First strut 1420 and second strut 1430 have differentfeatures to accommodate different requirements of these portions offloor beams 1020, such as reinforcement of floor beams 1020 aroundopening 1023, reducing the overall weight of seating system 1100 andvehicle 1000.

Specifically, first strut 1420 is attached to a portion of one of floorbeams 1020 that does not have any beam openings as, for example, shownin FIG. 5B. First face wall 1424 of first strut 1420 is positionedagainst floor beam 1020 and one or more of plurality of second fasteners1490 is installed through first face wall 1424 and floor beam 1020. Onthe other hand, second strut 1430 is attached to a portion of one offloor beams 1020, which has opening 1023 as, for example, also shown inFIG. 5B. Opening 1023 is used in one or more of floor beams 1020 forweight reduction and/or feeding cable, lines, and other componentsthrough vehicle 1000. In some examples, one of floor beams 1020 hasmultiple openings. Opening 1023, when it is present in one of floorbeams 1020, reduces the interface area between second strut 1430 and oneof floor beams 1020 and weakens one or floor beams 1020 at the locationof opening 1023. Tabs 1436 of second strut 1430 are used to increase theinterface area with one of floor beams 1020. For example, one of tabs1436 extends away from opening 1023. Furthermore, in some examples,another one of tabs 1436 overlaps with opening 1023, which is filledwith spacer 1440.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5C-2,surfaces of second face wall 1434 and of tabs 1436 of second strut 1430,facing in one direction, are coplanar. The preceding subject matter ofthis paragraph characterizes example 48 of the present disclosure,wherein example 48 also includes the subject matter according to example47, above.

The coplanar surfaces of second face wall 1434 and tabs 1436 of secondstrut 1430 allow increasing the contact area between second strut 1430and floor beam 1020 when second strut 1430 is attached to floor beam1020.

In some examples, one of floor beams 1020 has a planar surface. Thissurface is contacted by second strut 1430 during installation of secondstrut 1430. More specifically, this surface is contacted by second facewall 1434 and tabs 1436 of second strut 1430. When the surfaces ofsecond face wall 1434 and tabs 1436 are coplanar, each one of thesesurfaces contacts the planar surface of one of floor beams 1020, therebyincreasing the contact area.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5B and5C-2, tabs 1436 of second strut 1430 are offset relative to each otheralong longitudinal axis 1431 of second strut 1430. Longitudinal axis1431 is parallel to each of two second parallel side walls 1432 and tosecond face wall 168 of second strut 1430. The preceding subject matterof this paragraph characterizes example 49 of the present disclosure,wherein example 49 also includes the subject matter according to example47 or 48, above.

In some examples, tabs 1436 of second strut 1430 are offset to avoidinterference or to ensure overlap with other features of floor beams1020. These features are positioned at different locations on floorbeams 1020 and the position of tabs 1436 is specifically offset toaccommodate these locations.

Referring to the example shown in FIG. 5B, the right one of tabs 1436 ispositioned higher (along longitudinal axis 1431 and orientation in FIG.5B) than the left one to avoid interference with bracket 1040, attachedto one of floor beams 1020. In one example, the left one of tabs 1436 ispositioned lower to ensure overlap with spacer 1440, positioned inopening 1023 of one of floor beams 1020. Other types of offset are alsowithin the scope of this disclosure.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5B, atleast one of tabs 1436 of second strut 1430 is configured to overlap atleast a portion of opening 1023 in one of floor beams 1020. Thepreceding subject matter of this paragraph characterizes example 50 ofthe present disclosure, wherein example 50 also includes the subjectmatter according to any one of examples 47 to 49, above.

One tab of tabs 1436, overlapping the portion of opening 1023, providessupport to second strut 1430 relative to one of floor beams 1020 eventhough this one of tabs 1436 or at least some parts of this one of tabs1436 does not directly interface with one of floor beams 1020, in someexamples.

In some examples, at least one of tabs 1436 overlaps at least theportion of opening 1023 in one of floor beams 1020 for attachment tospacer 1440, positioned in opening 1023, and doubler 1460, positioned onthe other side of one of floor beams 1020. As such, one of tabs 1436serves as a support feature for spacer 1440 and doubler 1460. This oneof tabs allows positioning second face wall 1434 away from opening 1023.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5C-1,plurality of struts 1410 comprises only first strut 1420. The precedingsubject matter of this paragraph characterizes example 51 of the presentdisclosure, wherein example 51 also includes the subject matteraccording to any one of examples 47 to 50, above.

First strut 1420 has a lower weight than second strut 1430 because firststrut 1420 does not have tabs 1436, which are components of second strut1430. If first strut 1420 can be used for attachment of secondary pairof seat tracks 1310 to floor beam 1020, first strut 1420 are usedinstead of second strut 1430, in some examples, thereby reducing theoverall weight of seating system 1100 and that of vehicle 1000.

In some examples, first strut 1420 is attached to floor beams 1020 thatdo not have openings or at least to portions of floor beams 1020 that donot have openings. If such floor beams or such portions of floor beamsare present first strut 1420 is used for weight saving consideration.

While the term “first strut 1420” is used in singular form, thoseskilled in the art would understand that multiple struts of this typeare presented in plurality of struts 1410, in some examples. As such,the terms “only first strut 1420” and “only second strut 1430” should beviewed as types of struts in plurality of struts 1410, rather than onlyone strut being present in plurality of struts 1410.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5C-2,plurality of struts 1410 comprises only second strut 1430. The precedingsubject matter of this paragraph characterizes example 52 of the presentdisclosure, wherein example 52 also includes the subject matteraccording to any one of examples 47 to 50, above.

In some examples, second strut 1430 is attached to one of floor beams1020 at any locations, regardless of presence or absence of openings infloor beams 1020. As such, second strut 1430 is an example of auniversal strut and, in some examples, is the only type of strutsupplied in seating-system kit 1500 and used for any locations on floorbeams 1020.

Often presence and/or position of openings in floor beams 1020 isunknown when seating-system kit 1500 is formed. Second strut 1430 isconfigured for attachment to floor beams 1020 at or near such openingsas well as other locations, while first strut 1420 is not used in theseexamples.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5A and5B, plurality of struts 1410 comprises first strut 1420 and second strut1430. The preceding subject matter of this paragraph characterizesexample 53 of the present disclosure, wherein example 53 also includesthe subject matter according to any one of examples 47 to 50, above.

A combination of first strut 1420 and second strut 1430 inseating-system kit 1500 allows installing seating-system kit 1500 onfloor beams 1020 with openings without excessively increasing the weightof vehicle 1000. In some examples, this type of seating-system kit 1500is used when presence and/or position of openings in floor beams 1020are known.

For example, if the attachment point, on secondary pair of seat tracks1310, does not have any openings, then first strut 1420 is used at thislocation, in one example. This example is shown in the left-hand side inFIG. 5B. First strut 1420 has a lower weight than second strut 1430, insome examples, and is used in such location. In other examples, secondstrut 1430 is used in such locations. Alternatively, if the attachmentlocation on secondary pair of seat tracks 1310 has opening 1023 or isnear the opening, then second strut 1430 is used. This example is shownin the right-hand side in FIG. 5B. In some examples, first strut 1420 isnot be used in such locations, near or at opening 1023.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5F, wall1025, containing opening 1023 in one of floor beams 1020, and spacer1440 have equal thicknesses. The preceding subject matter of thisparagraph characterizes example 54 of the present disclosure, whereinexample 54 also includes the subject matter according to any one ofexamples 46 to 53, above.

In some examples, spacer 1440 and wall 1025 of floor beams 1020 haveequal thicknesses to ensure that spacer 1440 is flush with both sides ofwall 1025 during installation of seating-system kit 1500. This flusharrangement allows spacer 1440 to be in contact with both second strut1430 and doubler 1460. Furthermore, this flush arrangement allows wall1025 of floor beams 1020 to be in contact with both second strut 1430and doubler 1460 around opening 1023 in wall 1025.

During installation of seating-system kit 1500, spacer 1440 ispositioned into opening 1023 and is aligned with one side of wall 1025around opening. In some examples, the alignment is assisted by secondstrut 1430 and doubler 1460. As such, one side of spacer 1440 and oneside of wall 1025 are coplanar and contact one of second strut 1430 ordoubler 1460. When spacer 1440 and wall 1025 of floor beams 1020 haveequal thicknesses, the other side of spacer 1440 and the other side ofwall 1025 are also coplanar and allow to contact the other one of secondstrut 1430 or doubler 1460. As such, the equal thicknesses allow spacer1440 and floor beams 1020 to contact both second strut 1430 and doubler1460 around opening 1023.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5B and5D, spacer 1440 and at least portion of opening 1023 in one of floorbeams 1020 have mutually complementary shapes. The preceding subjectmatter of this paragraph characterizes example 55 of the presentdisclosure, wherein example 55 also includes the subject matteraccording to any one of examples 46 to 54, above.

The complementary shapes of spacer 1440 and at least portion of opening1023 provide a larger interface between spacer 1440 and one of floorbeams 1020, enabling support of larger loads between spacer 1440 and oneof floor beams 1020. Furthermore, depending on these shapes, the loadsupport is provided in more directions.

Spacer 1440 is positioned within opening 1023 and attached to secondstrut 1430 and doubler 1460 by, for example, one of plurality of secondfasteners 1490. Second strut 1430 and doubler 1460 can be separatelyconnected to one of floor beams 1020. Spacer 1440 is not attached to oneof floor beams 1020 directly. Yet spacer 1140 can transfer loads to andfrom one of floor beams 1020, thereby providing additional support toone of plurality of second fasteners 1490. This load transfer isperformed through the interface between spacer 1440 and one of floorbeams 1020 or, more specifically, between edges of spacers and edges ofopening 1023 in one of floor beams 1020.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5B and5D, spacer 1440 has a shape, corresponding to a portion of a circle. Thepreceding subject matter of this paragraph characterizes example 56 ofthe present disclosure, wherein example 56 also includes the subjectmatter according to any one of examples 46 to 55, above.

When spacer 1440 has the shape corresponding to the portion of thecircle and this shape is complementary to the shape of opening 1023 inone of floor beams 1020, the load support between spacer 1440 and one offloor beams 1020 is provided in different directions. These directionsare perpendicular to the interface between spacer 1140 and opening 1023in one of floor beams 1020, in some examples.

Spacer 1440 is positioned within opening 1023 and attached to secondstrut 1430 and doubler 1460 by, for example, one of plurality of secondfasteners 1490. Second strut 1430 and doubler 1460 can be separatelyconnected to one of floor beams 1020. Spacer 1440 is not attached to oneof floor beams 1020 directly. Yet spacer 1140 can transfer loads to andfrom one of floor beams 1020 thereby providing additional support to oneof plurality of second fasteners 1490. This load transfer is performedthrough the interface between spacer 1440 and one of floor beams 1020or, more specifically, between edges of spacers and edges of opening1023 in one of floor beams 1020.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5A and5B, each of secondary pair of seat tracks 1310 is formed of aluminum.The preceding subject matter of this paragraph characterizes example 57of the present disclosure, wherein example 57 also includes the subjectmatter according to any one of examples 46 to 56, above.

Aluminum is a lightweight material with good mechanical characteristics.Secondary pair of seat tracks 1310 are long structures and the weight ofsecondary pair of seat tracks 1310 is reduced when secondary pair ofseat tracks 1310 is formed of aluminum in comparison, for example, toother common structural materials, such as steel.

When secondary pair of seat tracks 1310 is formed of aluminum, it haslow weight yet provide good mechanical support to seat assemblies thatare later attached to secondary pair of seat tracks 1310. Furthermore,aluminum tracks of secondary pair of seat tracks 1310 can be easilyattached to other types of materials, such as floor beams 1020 (e.g.,formed from composite materials) and plurality of struts 1410 (e.g.,formed of titanium).

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 2, 5A,5B, 5C-1 and 5C-2, plurality of struts 1410 is formed of titanium. Thepreceding subject matter of this paragraph characterizes example 58 ofthe present disclosure, wherein example 58 also includes the subjectmatter according to any one of examples 46 to 57, above.

Titanium is a lightweight material with good mechanical characteristics.However, titanium is expensive and, in some examples, is used primarilyfor small parts, such as plurality of struts 1410.

When plurality of struts 1410 is formed of titanium, it has low weightyet provide good mechanical support to secondary pair of seat tracks1310 that are later attached to plurality of struts 1410 and to seatassemblies that are later attached to secondary pair of seat tracks1310. Furthermore, titanium struts can be easily attached to other typesof materials, such as floor beams 1020 (e.g., formed of compositematerials) and secondary pair of seat tracks 1310 (e.g., formed ofaluminum).

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5B, 5E,and 5F, one of plurality of struts 1410 is configured to receive one ofplurality of first fasteners 1480 to attach one of plurality of struts1410 to secondary pair of seat tracks 1310. One of plurality of struts1410 is further configured to receive one of plurality of secondfasteners 1490 to attach one of plurality of struts 1410 to one of floorbeams 1020. The preceding subject matter of this paragraph characterizesexample 59 of the present disclosure, wherein example 59 also includesthe subject matter according to any one of examples 46 to 58, above.

In one example, one type of fasteners (e.g., plurality of firstfasteners 1480) is configured to attach one of plurality of struts 1410to secondary pair of seat tracks 1310. In another example, fasteners ofsame or different type are configured to attach one of plurality ofstruts 1410 to secondary pair of seat tracks 1310.

For example, one of plurality of first fasteners 1480 may protrudethrough a side wall of a strut (e.g., one of two first parallel sidewalls 1422 of first strut 1420 or one of two second parallel side walls1432 of second strut 1430) and through a wall of a track of secondarypair of seat tracks 1310. In some examples, one of plurality of firstfasteners 1480 passes through both side walls of the same strut (e.g.,two first parallel side walls 1422 of first strut 1420 or two secondparallel side walls 1432 of second strut 1430) in addition to protrudingthrough the track of secondary pair of seat tracks 1310. In someexamples, one of plurality of second fasteners 1490 protrudes through aface wall of a strut (e.g., first face wall 1424 of first strut 1420 orsecond face wall 1433 of second strut 1430) and wall 1025 of one offloor beams 1020. Furthermore, in some examples, another one ofplurality of second fasteners 1490 fastener protrudes through one oftabs 1436 of second strut 1430, spacer 1140, and doubler 1460, attachingthese three components together.

In some examples, plurality of first fasteners 1480 is structurally thesame or different from plurality of second fasteners 1490. Some examplesof plurality of first fasteners 1480 and/or plurality of secondfasteners 1490 include, but are not limited to, HI-LOK® fasteners,bolts, screws, and rivets.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5B, 5E,and 5F, seating-system kit 1500 further comprises plurality of secondfasteners 1490. One of plurality of second fasteners 1490 is configuredto protrude through one of plurality of struts 1410 and one of floorbeams 1020 and to attach one of plurality of struts 1410 to one of floorbeams 1020. The preceding subject matter of this paragraph characterizesexample 60 of the present disclosure, wherein example 60 also includesthe subject matter according to example 59, above.

In some examples, plurality of second fasteners 1490 is different fromplurality of first fasteners 1480 and used specifically for attachingsecond strut 1430 to spacer 1140 and doubler 1460 and/or for attachingsecond strut 1430 to one of floor beams 1020. In some examples,seating-system kit 1500 includes both plurality of first fasteners 1480and plurality of second fasteners 1490.

For example, plurality of second fasteners 1490 has different size thanplurality of first fasteners 1480 or be of different types because oftheir different attachment applications. In some examples, the number offasteners in plurality of first fasteners 1480 and in plurality ofsecond fasteners 1490 in seating-system kit 1500 depends on a number ofattachment points for each of type of attachment.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5C-2, oneof plurality of struts 1410 is second strut 1430, comprising two secondparallel side walls 1432, second face wall 1434, and tabs 1436. Secondface wall 1434 connects two second parallel side walls 1432. Tabs 1436extend from opposite sides of second face wall 1434 and areperpendicular to two second parallel side walls 1432. One of pluralityof second fasteners 1490 is configured to protrude through doubler 1460,one of floor beams 1020, and one of second face wall 1434 or one of tabs1436 and to attach doubler 1460, one of floor beams 1020, and one ofsecond face wall 1434 or one of tabs 1436. The preceding subject matterof this paragraph characterizes example 61 of the present disclosure,wherein example 61 also includes the subject matter according to example60, above.

In some examples, one or more of plurality of second fasteners 1490 isused for attachment of second strut 1430 directly to one of floor beams1020, attachment of second strut 1430 to spacer 1140 and doubler 1460,attachment of doubler 1460 to one of floor beams 1020, or variouscombinations of these attachments.

Specifically, during installation of seating-system kit 1500, one ofplurality of second fasteners 1490 protrudes through second face wall1433 of second strut 1430 and wall 1025 of one of floor beams 1020.Furthermore, another one of plurality of second fasteners 1490 fastenerprotrudes through one of tabs 1436 of second strut 1430, spacer 1140,and doubler 1460, attaching these three components together.

Referring generally to FIG. 1 and particularly to, e.g., FIGS. 5B, 5E,and 5F, Seating-system kit 1500 further comprises plurality of firstfasteners 1480. One of plurality of first fasteners 1480 is configuredto protrude through one of secondary pair of seat tracks 1310 and one ofplurality of struts 1410 and to attach one of secondary pair of seattracks 1310 to one of plurality of struts 1410. The preceding subjectmatter of this paragraph characterizes example 62 of the presentdisclosure, wherein example 62 also includes the subject matteraccording to any one of examples 59 to 61, above.

In some examples, plurality of first fasteners 1480 is configured toattach secondary pair of seat tracks 1310 and plurality of struts 1410during installation of seating-system kit 1500 on vehicle 1000 and tosupport secondary pair of seat tracks 1310 and plurality of struts 1410with respect to each other during operation of vehicle 1000.

In some examples, one of plurality of first fasteners 1480 protrudesthrough a side wall of a strut (e.g., one of two first parallel sidewalls 1422 of first strut 1420) and through a wall of a track ofsecondary pair of seat tracks 1310. In some examples, one of pluralityof first fasteners 1480 protrudes through both side walls of the samestrut (e.g., two first parallel side walls 1422 of first strut 1420) inaddition to protruding through the track of secondary pair of seattracks 1310.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5C-2, oneof plurality of struts 1410 is second strut 1430, comprising two secondparallel side walls 1432, second face wall 1434, and tabs 1436. Secondface wall 1434 connects two second parallel side walls 1432. Tabs 1436extend from opposite sides of second face wall 1434 and areperpendicular to two second parallel side walls 1432. One of pluralityof first fasteners 1480 is configured to protrude through at least oneof two second parallel side walls 1432. The preceding subject matter ofthis paragraph characterizes example 63 of the present disclosure,wherein example 63 also includes the subject matter according to example62, above.

In some examples, two second parallel side walls 1432 of second strut1430 interface with one of secondary pair of seat tracks 1310, while oneor more of plurality of first fasteners 1480 are configured to force twosecond parallel side walls 1432 against one of secondary pair of seattracks 1310, thereby supporting second strut 1430 relative to one ofsecondary pair of seat tracks 1310.

In some examples, one of plurality of first fasteners 1480 protrudesthrough a side wall of a strut (e.g., one of two first parallel sidewalls 1422 of first strut) and through a wall of a track of secondarypair of seat tracks 1310. In some examples, one of plurality of firstfasteners 1480 protrudes through both side walls of the same strut(e.g., two first parallel side walls 1422 of first strut 1420), inaddition to protruding through the track of secondary pair of seattracks 1310.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 2,seating-system kit 1500 further comprises adhesive 1470 to bond doubler1460 to one of floor beams 1020. The preceding subject matter of thisparagraph characterizes example 64 of the present disclosure, whereinexample 64 also includes the subject matter according to any one ofexamples 46 to 63, above.

In some examples, adhesive 1470 provides an adhesion bond betweendoubler 1460 and one of floor beams 1020 (e.g., to support doubler 1460relative to one of floor beams 1020 during and after installation ofseating-system kit 1500). Furthermore, adhesive 1470 ensures a largercontact interface between doubler 1460 and one of floor beams 1020 andmore uniform load distribution between doubler 1460 and one of floorbeams 1020.

In some examples, adhesive 1470 is used instead or in addition tofasteners, such as plurality of second fasteners 1490. Some examples ofadhesive 1470 include, but are not limited to, epoxy adhesives,polyurethane adhesives, methyl methacrylate adhesives, siliconeadhesives, and the like. Some examples of adhesive 1470, which is asingle-component adhesive, include a heat-curable adhesive, amoisture-curable adhesive (e.g., moisture in the air), and/or aradiation-curable adhesive.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 2,seating-system kit 1500 further comprises adhesive 1470 to bond doubler1460 to one of floor beams 1020 and to spacer 1440. The precedingsubject matter of this paragraph characterizes example 65 of the presentdisclosure, wherein example 65 also includes the subject matteraccording to any one of examples 46 to 63, above.

In some examples, adhesive 1470 provides an adhesion bond betweendoubler 1460 and one of floor beams 1020 and spacer 1440 (e.g., tosupport doubler 1460 and/or spacer 1440 relative to one of floor beams1020 during and after installation of seating-system kit 1500).Furthermore, adhesive 1470 ensures a larger contact interface betweendoubler 1460 and one of floor beams 1020 as well as between doubler 1460and spacer 1140 and more uniform load distribution between thesecomponents.

In some examples, adhesive 1470 is used instead or in addition tofasteners, such as plurality of second fasteners 1490. Some examples ofadhesive 1470 include, but are not limited to, epoxy adhesives,polyurethane adhesives, methyl methacrylate adhesives, siliconeadhesives, and the like. Some examples of adhesive 1470, which is asingle-component adhesive, include a heat-curable adhesive, amoisture-curable adhesive (e.g., moisture in the air), and/or aradiation-curable adhesive.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5G,doubler 1460 is configured to fully overlap opening 1023 in one of floorbeams 1020. The preceding subject matter of this paragraph characterizesexample 66 of the present disclosure, wherein example 66 also includesthe subject matter according to any one of examples 46 to 65, above.

When doubler 1460 fully overlaps opening 1023 in one of floor beams1020, doubler 1460 is in contact with the entire edge of opening 1023and provides support to this edge without creating any stress point. Assuch, doubler 1460 reinforces one of floor beams 1020, considering thatsecond strut 1430 is attached to one of floor beams 1020 at thislocation.

In some examples, doubler 1460 interfaces with one side of one of floorbeams 1020 and extend over opening 1023 fully overlapping opening 1023.Doubler 1460 is glued to one of floor beams 1020 and/or is attached toone of floor beams 1020 using one or more of plurality of secondfasteners 1490. Doubler 1460 evenly distributes loads throughout one offloor beams 1020 without creating stress points at the edge of opening1023.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 5C-2 andFIG. 5G, one of plurality of struts 1410 is second strut 1430,comprising two second parallel side walls 1432, second face wall 1434,and tabs 1436. Second face wall 1434 connects two second parallel sidewalls 1432. Tabs 1436 extend from opposite sides of second face wall1434 and are perpendicular to two second parallel side walls 1432.Doubler 1460 is configured to fully overlap one of tabs 1436 and spacer1440. The preceding subject matter of this paragraph characterizesexample 67 of the present disclosure, wherein example 67 also includesthe subject matter according to any one of examples 46 to 66, above.

In some examples, connecting second strut 1430 to one of floor beams1020 around opening 1023 in one of floor beams 1020 is performed using acombination of doubler 1460, spacer 1440, and one of tabs 1436 of secondstrut 1430 without creating excessive stresses on one of floor beams1020 near opening 1023. During installation of seating-system kit 1500,one of tabs 1436 overlaps with doubler 1460. Spacer 1440 is positionedbetween one of tabs 1436 and doubler 1460 and allows to transfer loadsbetween one of tabs 1436 and doubler 1460 through opening 1023 in one offloor beams 1020. Doubler 1460 then distributes the loads away fromopening 1023.

In some examples, doubler 1460 interfaces with one side of one of floorbeams 1020 and extend over opening 1023 fully overlapping opening 1023.Doubler 1460 is glued to one of floor beams 1020 and/or is attached toone of floor beams 1020 using one or more of plurality of secondfasteners 1490. Furthermore, in some examples, doubler 1460 interfaceswith spacer 1440, which in turn interfaces with one of tabs 1436 ofsecond strut 1430. Doubler 1460 is glued or otherwise attached to spacer1440, which in turn is glued or attached to one of tabs 1436 of secondstrut 1430. In some examples, doubler 1460, spacer 1440, and one of tabs1436 of second strut 1430 are attached using one or more of plurality ofsecond fasteners 1490.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 3A, 3C,4A, and 4B, method 6000 of configuring seating system 1100 of vehicle1000 is disclosed. Vehicle 1000 comprises floor beams 1020. Seatingsystem 1100 comprises primary pair of seat tracks 1300, attached tofloor beams 1020 and supporting first seating assembly 1200. Method 6000comprises (block 6200) attaching secondary pair of seat tracks 1310 tofloor beams 1020 of vehicle 1000 such that one of secondary pair of seattracks 1310 is positioned between seat tracks of primary pair of seattracks 1300. The preceding subject matter of this paragraphcharacterizes example 68 of the present disclosure.

Attaching secondary pair of seat tracks 1310 to floor beams 1020 ofvehicle 1000, which already comprises primary pair of seat tracks 1300,allows changing seating configurations of vehicle 1000 with minimalefforts. In some examples, primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310 are configured and used to supportdifferent types of seat assemblies (e.g., seat assemblies with differentnumber of seats). These types of seat assemblies are interchangeable inthe same general location. One seat assembly is used, for example, toincrease the seating capacity of vehicle 1000, while another seatassembly is used, for example, to increase aisle space.

In some examples, to avoid interference between primary pair of seattracks 1300 and secondary pair of seat tracks 1310, these pairs areshifted relative to each other in the direction, perpendicular tovirtual longitudinal plane 1012. The degree of this shift is less thanthe track width of either primary pair of seat tracks 1300 or secondarypair of seat tracks 1310, in some examples. As such, one of secondarypair of seat tracks 1310 is positioned between the seat tracks ofprimary pair of seat tracks 1300 and first seat assembly 1200. In someexamples, the track widths of primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310 are identical.

In one example, secondary pair of seat tracks 1310 is attached to floorbeams 1020 of vehicle 1000 using various fastening hardware 1400, suchas plurality of struts 1410, comprising, e.g., first strut 1420 and/orsecond strut 1430. In some examples, fastening hardware 1400 comprisesdoubler 1460 and spacer 1440, usable for attaching secondary pair ofseat tracks 1310 to floor beams 1020, comprising opening 1023.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 3A and4B, according to method 6000, (block 6200) attaching secondary pair ofseat tracks 1310 to floor beams 1020 of vehicle 1000 is performed suchthat only one of secondary pair of seat tracks 1310 is positionedbetween seat tracks of primary pair of seat tracks 1300. The precedingsubject matter of this paragraph characterizes example 69 of the presentdisclosure, wherein example 69 also includes the subject flatteraccording to example 68, above.

Attaching one of secondary pair of seat tracks 1310 between the seattracks of primary pair of seat tracks 1300 avoids interference betweensecondary pair of seat tracks 1310 and primary pair of seat tracks 1300.In some examples, secondary pair of seat tracks 1310 is shifted relativeprimary pair of seat tracks 1300 in the direction, perpendicular tovirtual longitudinal plane 1012. When the degree of shift is less thanthe width of primary pair of seat tracks 1300, only one of secondarypair of seat tracks 1310 is attached between seat tracks of primary pairof seat tracks 1300. At the same time, in some examples, the degree ofshift is minimal to ensure that seat assemblies supported by primarypair of seat tracks 1300 and secondary pair of seat tracks 1310 arealigned along virtual longitudinal axis 1010.

Attaching only one of secondary pair of seat tracks 1310 between theseat tracks of primary pair of seat tracks 1300 also enables use of seattracks with similar track widths. In some examples, a certain minimumtrack width is needed to provide support to seat assemblies attached toprimary pair of seat tracks 1300 and secondary pair of seat tracks 1310,particularly in when vehicle 1000 is moving. In some examples, the trackwidths of primary pair of seat tracks 1300 and secondary pair of seattracks 1310 are constant and are substantially the same (e.g., varyingby less than 10% or even varying by less than 5%). This features alsoallows combining bend and straight tracks without interference. Forexample, FIG. 3A illustrates primary pair of seat tracks 1300 havingfirst portions 1301 and second portions 1302 oblique to first portions1301. Secondary pair of seat tracks 1310 are straight.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 3A,according to method 6000, (block 6200) attaching secondary pair of seattracks 1310 to floor beams 1020 of vehicle 1000 is performed such thatonly one of secondary pair of seat tracks 1310 is positioned betweenseat tracks of primary pair of seat tracks 1300 along its entire length.The preceding subject matter of this paragraph characterizes example 70of the present disclosure, wherein example 70 also includes the subjectmatter according to example 69, above.

Positioning one of secondary pair of seat tracks 1310 between the seattracks of primary pair of seat tracks 1300 along the entire length ofsecondary pair of seat tracks 1310 allows to avoid interference betweensecondary pair of seat tracks 1310 and primary pair of seat tracks 1300along that length. Furthermore, positioning one of secondary pair ofseat tracks 1310 between seat tracks of primary pair of seat tracks 1300along the entire length of secondary pair of seat tracks 1310 providessupport to secondary pair of seat tracks 1310 along its entire lengthand enables the use of secondary pair of seat tracks 1310 that isshorter and, therefore, has lower weight without sacrificing support andload distribution characteristics of seating system 1100.

In some examples, when installed, primary pair of seat tracks 1300 andsecondary pair of seat tracks 1310 are both attached to the same set offloor beams 1020. Primary pair of seat tracks 1300 is longer andattached to a large number of floor beams 1020 thereby allowing moreuniform load distribution. The same set of floor beams 1020, to whichboth primary pair of seat tracks 1300 and secondary pair of seat tracks1310 are attached, allows for load redistribution between primary pairof seat tracks 1300 and secondary pair of seat tracks 1310.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 3B, method6000 further comprises, prior to (block 6200) attaching secondary pairof seat tracks 1310 to floor beams 1020, (block 6050) detaching firstseat assembly 1200 from primary pair of seat tracks 1300. Method 6000further comprises, after (block 6200) attaching secondary pair of seattracks 1310 to floor beams 1020, (block 6800) reattaching first seatassembly 1200 to primary pair of seat tracks 1300. The preceding subjectmatter of this paragraph characterizes example 71 of the presentdisclosure, wherein example 71 also includes the subject matteraccording to any one of examples 68 to 70, above.

Detaching first seat assembly 1200 from primary pair of seat tracks 1300provides access to floor beams 1020 to which secondary pair of seattracks 1310 is attached to. In some examples, a portion of secondarypair of seat tracks 1310 extends under first seat assembly 1200 eventhough first seat assembly 1200 is not supported by secondary pair ofseat tracks 1310.

In some examples, detaching first seat assembly 1200 from primary pairof seat tracks 1300 involves removal of fasteners (e.g., bolts)extending between first seat assembly 1200 and primary pair of seattracks 1300. In some examples, these fasteners are reused when firstseat assembly 1200 is reattached to primary pair of seat tracks 1300.First seat assembly 1200 is reattached to primary pair of seat tracks1300 after secondary pair of seat tracks 1310 is attached to floor beams1020 and no further access to floor beams 1020 is not needed.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 4A and4B, method 6000 further comprises, prior to (block 6200) attachingsecondary pair of seat tracks 1310 to floor beams 1020, (block 6100)detaching floor panels 1060 from primary pair of seat tracks 1300.Method 6000 also comprises, after (block 6200) attaching secondary pairof seat tracks 1310 to floor beams 1020, (block 6700) attaching floorpanels 1060 to primary pair of seat tracks 1300 and to secondary pair ofseat tracks 1310. The preceding subject matter of this paragraphcharacterizes example 72 of the present disclosure, wherein example 72also includes the subject matter according to any one of examples 68 to71, above.

Detaching (block 6100) floor panels 1060 from primary pair of seattracks 1300 provides access to floor beams 1020 to which secondary pairof seat tracks 1310 is attached to. Once secondary pair of seat tracks1310 is attached to floor beams 1020 and no further access is needed tofloor beams 1020, floor panels 1060 are reinstalled. In one example, thefloor panels are identical to each other. In another example, at leastsome of the floor panels are structurally different from other floorpanels.

In some examples, floor panels 1060 are initially attached to primarypair of seat tracks 1300 and extend between primary pair of seat tracks1300. Once secondary pair of seat tracks 1310 is attached to floor beams1020 and no further access is needed to floor beams 1020, floor panels1060 are attached to both primary pair of seat tracks 1300 and secondarypair of seat tracks 1310. In some examples, floor panels 1060 extendbetween each pair of adjacent tracks, such that each pair is formed byone track of primary pair of seat tracks 1300 and one track of secondarypair of seat tracks 1310.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 4B, method6000 further comprises, after (block 6200) attaching secondary pair ofseat tracks 1310, (block 6900) attaching second seat assembly 1210 tosecondary pair of seat tracks 1310. The preceding subject matter of thisparagraph characterizes example 73 of the present disclosure, whereinexample 73 also includes the subject matter according to any one ofexamples 68 to 72, above.

Once secondary pair of seat tracks 1310 is attached to floor beams 1020,secondary pair of seat tracks 1310 is able to support second seatassembly 1210, and second seat assembly 1210 is attached to secondarypair of seat tracks 1310. In some examples, second seat assembly 1210replaces another seat assembly in order, for example, to change theseating configuration of vehicle 1000.

Attaching second seat assembly 1210 to secondary pair of seat tracks1310 may involve installing fasteners (e.g., bolts) extending betweensecond seat assembly 1210 to secondary pair of seat tracks 1310. In someexamples, second seat assembly 1210 is attached at a particular distancefrom first seat assembly 1200. In some examples, additional seatassemblies are attached to secondary pair of seat tracks 1310 duringthis operation.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 3B, 4A,and 4B, according to method 6000, first seat assembly 1200 comprisesfirst seat support 1202 and first plurality of seats 1204, attached tofirst seat support 1202. Second seat assembly 1210 comprises second seatsupport 1212 and second plurality of seats 1214, attached to second seatsupport 1212. First plurality of seats 1204 and second plurality ofseats 1214 have equal numbers of seats. The preceding subject matter ofthis paragraph characterizes example 74 of the present disclosure,wherein example 74 also includes the subject matter according to example73, above.

In some examples, the same number of seats in first plurality of seats1204 and second plurality of seats 1214, shown in FIG. 3B, is used tomaximize the overall seating capacity of vehicle, in comparison, forexample to a seat arrangement, shown in FIG. 3C. Furthermore, backsupports of first plurality of seats 1204 are used as safety features bypassengers in second plurality of seats 1214 during, for example, suddendeceleration of vehicle 1000. The same number of seats also allowspassengers, seated in second plurality of seats 1214, to use the backsides of first plurality of seats 1204 for access to various features,such as foldable trays, displays, and the like.

Specifically, each seat in second plurality of seats 1214 has acorresponding seat in first plurality of seats 1204. The back side ofthis seat in first plurality of seats 1204 are used to support thesevarious features and utilized by a passenger in the seat of secondplurality of seats 1214.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 3B, 4A,and 4B, according to method 6000, (block 6900) attaching second seatassembly 1210 to secondary pair of seat tracks 1310 comprises (block6910) attaching second seat support 1212 of second seat assembly 1210 tosecondary pair of seat tracks 1310. Second seat support 1212 isgeometrically different from first seat support 1202 attached to primarypair of seat tracks 1300. The preceding subject matter of this paragraphcharacterizes example 75 of the present disclosure, wherein example 75also includes the subject matter according to example 74, above.

The geometric difference between first seat support 1202 and second seatsupport 1212 enables alignment of first plurality of seats 1204 withsecond plurality of seats 1214 relative to virtual longitudinal plane1012 even when seat tracks supporting these seat assemblies are offset.In some examples, the track offset is used to avoid interference betweenprimary pair of seat tracks 1300 and secondary pair of seat tracks 1310.However, the alignment or a different offset of first plurality of seats1204 with second plurality of seats 1214 allows to have a straight aislewith a constant width.

Specifically, first seat assembly 1200 comprises first seat support 1202attached to primary pair of seat tracks 1300, while second seat assembly1210 comprises second seat support 1212 attached to secondary pair ofseat tracks 1310. As shown in FIG. 3A, secondary pair of seat tracks1310 is offset toward virtual longitudinal plane 1012 relative toprimary pair of seat tracks 1300 or, at least, relative to firstportions 1301 of primary pair of seat tracks 1300. As shown in FIG. 3B,each seat in first plurality of seats 1204 of first seat assembly 1200is generally aligned with one seat in second plurality of seats 1214 ofsecond seat assembly 1210 along virtual longitudinal axis 1010.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 5B, 5E,and 5F, according to method 6000, (block 6910) attaching second seatsupport 1212 of second seat assembly 1210 to secondary pair of seattracks 1310 comprises (block 6915) installing plurality of thirdfasteners 1495, each extending through second seat support 1212 and oneof secondary pair of seat tracks 1310. The preceding subject matter ofthis paragraph characterizes example 76 of the present disclosure,wherein example 76 also includes the subject matter according to example75, above.

Plurality of third fasteners 1495 secure second seat support 1212 to oneof secondary pair of seat tracks 1310. As such, during operation ofvehicle 1000, second seat assembly 1210 retains its position with restto secondary pair of seat tracks 1310 and the rest of vehicle 1000.

In some examples, plurality of third fasteners 1495 is the same as ordifferent from plurality of first fasteners 1480 or plurality of secondfasteners 1490. Some examples include, but are not limited to, HI-LOK®fasteners, bolts, screws, and rivets. In some examples, plurality ofthird fasteners 1495 are installed after installing floor panels 1060.For example, portions of secondary pair of seat tracks 1310 protrudesabove floor panels 1060 and be used for attaching second seat support1212 of second seat assembly 1210.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 3A,according to method 6000, (block 6200) attaching secondary pair of seattracks 1310 to floor beams 1020 comprises (block 6210) aligningsecondary pair of seat tracks 1310 to floor beams 1020 such that eachseat track in secondary pair of seat tracks 1310 is perpendicular toeach of floor beams 1020. The preceding subject matter of this paragraphcharacterizes example 77 of the present disclosure, wherein example 77also includes the subject matter according to any one of examples 68 to76, above.

In some examples, complexity of connecting secondary pair of seat tracks1310 to floor beams 1020 is reduced when each seat track in secondarypair of seat tracks 1310 is perpendicular to each of floor beams 1020.For example, various rectangular features of plurality of struts 1410are utilized for this operation.

In some examples, floor beams 1020 are perpendicular to virtuallongitudinal plane 1012. As such, when the seat tracks of secondary pairof seat tracks 1310 are each parallel to virtual longitudinal axis 1010,these seat tracks are also perpendicular to floor beams 1020,simplifying the attachment of secondary pair of seat tracks 1310 tofloor beams 1020. Furthermore, such attachments are able to supportlarger loads that for example, when secondary pair of seat tracks 1310are not perpendicular to floor beams 1020.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 5B, 5C-1,and 5C-2, according to method 6000, (block 6200) attaching secondarypair of seat tracks 1310 to floor beams 1020 comprises (block 6300)attaching plurality of struts 1410 to floor beams 1020 and (block 6400)attaching secondary pair of seat tracks 1310 to plurality of struts1410. Plurality of struts 1410 comprises at least one of first strut1420 or second strut 1430. The preceding subject matter of thisparagraph characterizes example 78 of the present disclosure, whereinexample 78 also includes the subject matter according to any one ofexamples 68 to 77, above.

Plurality of struts 1410 is used for attaching secondary pair of seattracks 1310 to floor beams 1020 or, more specifically, to provide acoupling interface.

Plurality of struts 1410 comprises at least one of first strut 1420 orsecond strut 1430. In some examples, first strut 1420 is used forattachment of secondary pair of seat tracks 1310 to some portions offloor beams 1020 (e.g., free from openings) while second strut 1430 isused for attachment to other portions of floor beams 1020 (e.g., nearthe opening). First strut 1420 is geometrically different from secondstrut 1430 to achieve different functionalities. In some examples,plurality of struts 1410 includes only one or more of first struts 1420,only one or more of second struts 1430, or a combination of one or moreof first struts 1420 and one or more of second struts 1430. In someexamples, doubler 1460 is used in where one of floor beams 1020 hasopening 1023, e.g., to reinforce one of floor beams 1020 around opening1023. In some examples, spacer 1440 is positioned in opening 1023 tobridge the space between doubler 1460 and, for example, second strut1430 when second strut 1430 and doubler 1460 are attached to one offloor beams 1020.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 5B,according to method 6000, one of floor beams 1020 comprises opening 1023and (block 6300) attaching plurality of struts 1410 to one of floorbeams 1020 comprises (block 6305) attaching second strut 1430 to one offloor beams 1020. Second strut 1430 comprises two second parallel sidewalls 1432, second face wall 1434, and tabs 1436. Second face wall 1434connects two second parallel side walls 1432. Tabs 1436 extend fromopposite sides of second face wall 1434 and are perpendicular to twosecond parallel side walls 1432. One of tabs 1436 at least partiallycovers opening 1023. The preceding subject matter of this paragraphcharacterizes example 79 of the present disclosure, wherein example 79also includes the subject matter according to example 78, above.

One tab of tabs 1436, overlapping the portion of opening 1023, providessupport to second strut 1430 relative to one of floor beams 1020 eventhough this one of tabs 1436 or at least some parts of this one of tabs1436 dies not directly interface with one of floor beams 1020.

In some examples, at least one of tabs 1436 overlaps at least a portionof opening 1023 in one of floor beams 1020 for attachment to spacer 1440positioned in opening 1023 and doubler 1460 positioned on the other sideof one of floor beams 1020. As such, one of tabs 1436 serves as asupport feature for spacer 1440 and doubler 1460. This one of tabsallows positioning second face wall 1434 away from opening 1023.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 5D and5G, according to method 6000, one of floor beams 1020 comprises firstside 1024 and second side 1026, opposite first side 1024, and (block6305) attaching second strut 1430 to one of floor beams 1020 comprises:(block 6320) positioning doubler 1460 against first side 1024 of one offloor beams 1020, (block 6340) positioning second strut 1430 againstsecond side 1026 of one of floor beams 1020, (block 6360) forming one ofplurality of fastener openings 1027 through second strut 1430, one offloor beams 1020, and doubler 1460, and (block 6380) installing one ofplurality of second fasteners 1490 through one of plurality of fasteneropenings 1027 to interconnect second strut 1430, one of floor beams1020, and doubler 1460. The preceding subject matter of this paragraphcharacterizes example 80 of the present disclosure, wherein example 80also includes the subject matter according to example 79, above.

In some examples, doubler 1460 is connected to second strut 1430 and oneof floor beams 1020 to reinforce one of floor beams 1020 and toredistribute the load away from the connection point. For example, theconnection point is at or near opening 1023 in one of floor beams 1020.

When doubler 1460 is connected to second strut 1430 and one of floorbeams 1020, one of floor beams 1020 is positioned between doubler 1460and second strut 1430. Specifically, doubler 1460 is positioned againstfirst side 1024 of one of floor beams 1020, while second strut 1430 ispositioned against second side 1026 of one of floor beams 1020. In someexamples, plurality of fastener openings 1027 is formed through secondstrut 1430, one of floor beams 1020, and doubler 1460 using, forexample, a drill. Plurality of second fasteners 1490 installed throughone of plurality of fastener openings 1027 to interconnect second strut1430, one of floor beams 1020, and doubler 1460 are, for example,HI-LOK® fasteners, bolts, screws, and rivets.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 5B,according to method 6000, one of plurality of second fasteners 1490 isinstalled through one of tabs 1436, at least partially covering opening1023 in one of floor beams 1020. The preceding subject matter of thisparagraph characterizes example 81 of the present disclosure, whereinexample 81 also includes the subject matter according to example 80,above.

One tab of tabs 1436, overlapping the portion of opening 1023, providessupport to second strut 1430 relative to one of floor beams 1020 eventhough this one of tabs 1436 or at least some parts of this one of tabs1436 does not directly interface with one of floor beams 1020.

In some examples, at least one of tabs 1436 overlaps at least a portionof opening 1023 in one of floor beams 1020 for attachment to spacer 1440positioned in opening 1023 and doubler 1460 positioned on the other sideof one of floor beams 1020. As such, one of tabs 1436 serves as asupport feature for spacer 1440 and doubler 1460. This one of tabsallows positioning second face wall 1434 away from opening 1023.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 5C-2,according to method 6000, one of plurality of second fasteners 1490 isinstalled through second face wall 1434 of second strut 1430. Thepreceding subject matter of this paragraph characterizes example 82 ofthe present disclosure, wherein example 82 also includes the subjectmatter according to example 80, above.

In some examples, one or more of plurality of second fasteners 1490 areused for attachment of second strut 1430 directly to one of floor beams1020, attachment of second strut 1430 to spacer 1140 and doubler 1460,attachment of doubler 1460 to one of floor beams 1020, or variouscombinations of these attachments.

In some examples, one of plurality of second fasteners 1490 protrudesthrough second face wall 1434 of second strut 1430 and wall 1025 of oneof floor beams 1020. Furthermore, another one of plurality of secondfasteners 1490 fastener protrudes through one of tabs 1436 of secondstrut 1430, spacer 1140, and doubler 1460, attaching these threecomponents together. Some examples of plurality of second fasteners 1490include, but are not limited to, HI-LOK® fasteners, bolts, screws, andrivets.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 5B,according to method 6000, one of plurality of second fasteners 1490 isinstalled through another one of tabs 1436, extending away from opening1023 in one of floor beams 1020. The preceding subject matter of thisparagraph characterizes example 83 of the present disclosure, whereinexample 83 also includes the subject matter according to example 80,above.

In some examples, Tabs 1436 of second strut 1430 are used to increasethe interface area with one of floor beams 1020. For example, one oftabs 1436 extends away from opening 1023. One of tabs 1436 is secured byone of plurality of second fasteners 1490 for attaching second strut1430 directly to one of floor beams 1020.

In some examples, fastener opening 1070 is formed through one of tabs1436 and floor beams 1020 and one of plurality of second fasteners 1490is installed through fastener opening 1070. In some examples, one ofplurality of second fasteners 1490 further extends through doubler 1460positioned on another side of one of floor beams 1020 such that one offloor beams 1020 is positioned between doubler 1460 and one of tabs 1436of second strut 1430. Some examples of plurality of second fasteners1490 include, but are not limited to, HI-LOK® fasteners, bolts, screws,and rivets.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 5B,according to method 6000, (block 6305) attaching second strut 1430 toone of floor beams 1020 further comprises (block 6330) positioningspacer 1440 into opening 1023 in one of floor beams 1020 such that atleast portion of spacer 1440 is between doubler 1460 and one of tabs1436 of second strut 1430. The preceding subject matter of thisparagraph characterizes example 84 of the present disclosure, whereinexample 84 also includes the subject matter according to any one ofexamples 80 to 83, above.

In some examples, spacer 1440 is positioned in opening 1023 to bridgethe space between doubler 1460 and, for example, second strut 1430 whensecond strut 1430 and doubler 1460 are attached to one of floor beams1020.

In some examples, spacer 1440 and wall 1025 of floor beams 1020 haveequal thicknesses to ensure that spacer 1440 is flush with both sides ofwall 1025 and interfaces with both doubler 1460 and one of tabs 1436 ofsecond strut 1430. In some examples, one of plurality of secondfasteners 1490 is installed through doubler 1460, spacer 1440, and oneof tabs 1436 of second strut 1430. In some examples, when spacer 1440 ispositioned into spacer 1440 into opening 1023, spacer 1440 is adhered todoubler 1460.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 2,according to method 6000, (block 6305) attaching second strut 1430 toone of floor beams 1020 further comprises (block 6322) applying adhesive1470 between doubler 1460 and first side 1024 of one of floor beams 1020and between doubler 1460 and spacer 1440. The preceding subject matterof this paragraph characterizes example 85 of the present disclosure,wherein example 85 also includes the subject matter according to example84, above.

In some examples, adhesive 1470 provides an adhesion bond betweendoubler 1460 and one of floor beams 1020 (e.g., to support doubler 1460relative to one of floor beams 1020 during and after installation ofseating-system kit 1500). Furthermore, adhesive 1470 ensures a largercontact interface between doubler 1460 and one of floor beams 1020 andmore uniform load distribution between doubler 1460 and one of floorbeams 1020.

In some examples, adhesive 1470 is used instead or in addition tofasteners, such as plurality of second fasteners 1490. Some examples ofadhesive 1470 include, but are not limited to, epoxy adhesives,polyurethane adhesives, methyl methacrylate adhesives, siliconeadhesives, and the like. Some examples of adhesive 1470, when it is asingle-component adhesive, are a heat-curable adhesive, amoisture-curable adhesive (e.g., moisture in the air), and/or aradiation-curable adhesive.

Referring generally to FIG. 6 and particularly to, e.g., FIG. 5G,according to method 6000, (block 6305) attaching second strut 1430 toone of floor beams 1020 further comprises (block 6310) detaching bracket1040 from one of floor beams 1020, (block 6365) forming an additionalone of plurality of fastener openings 1027 through doubler 1460, and(block 6385) installing another one of plurality of second fasteners1490 through additional one of plurality of fastener openings 1027 andbracket 1040 to interconnect bracket 1040, one of floor beams 1020, anddoubler 1460. The preceding subject matter of this paragraphcharacterizes example 86 of the present disclosure, wherein example 86also includes the subject matter according to any one of examples 80 to85, above.

In some examples, bracket 1040 is positioned near the attachment pointof second strut 1430 to one of floor beams 1020. At the same time,doubler 1460 is used to reinforce one of floor beams 1020 and toredistribute loads throughout one of floor beams 1020 to avoid excessivestresses near opening 1023 in one of floor beams 1020 and/or near theattachment point of bracket 1040 to one of floor beams 1020.

In some examples, doubler 1460 extends over the attachment point ofbracket 1040 to one of floor beams 1020 and reinforce one of floor beams1020 at that point. To prevent interference between fasteners,supporting bracket 1040 relative to one of floor beams 1020, bracket1040 is detached. Doubler 1460 is positioned against one of floor beams1020 such that one of floor beams 1020 is disposed between doubler 1460and bracket 1040. Bracket 1040 is then reattached using one of pluralityof second fasteners 1490, which protrudes through bracket 1040, one offloor beams 1020, and doubler 1460.

Referring generally to FIG. 1 and particularly to, e.g., FIG. 6,according to method 6000, (block 6300) attaching plurality of struts1410 to one of floor beams 1020 comprises (block 6302) attaching firststrut 1420 to one of floor beams 1020. The preceding subject matter ofthis paragraph characterizes example 87 of the present disclosure,wherein example 87 also includes the subject matter according to any oneof examples 78 to 86, above.

Plurality of struts 1410 are also attached to secondary pair of seattracks 1310 and support secondary pair of seat tracks 1310 relative tofloor beams 1020. Attachment of plurality of struts 1410 to one of floorbeams 1020 provides this support.

Various forms of attachment of plurality of struts 1410 to one of floorbeams 1020 are within the scope of the present disclosure, such asinstalling fasteners e.g., plurality of second fasteners 1490), applyingadhesive 1470, and the like. When opening 1023 is present in one offloor beams 1020, plurality of struts 1410 is attached to one of floorbeams 1020 in areas away from opening 1023.

Referring generally to FIG. 6 and particularly to, e.g., FIGS. 5B and5C-1, according to method 6000, first strut 1420 comprises two firstparallel side walls 1422 and first face wall 1424 that connects twofirst parallel side walls 1422 and (block 6302) attaching first strut1420 to one of floor beams 1020 comprises installing multiple ones ofplurality of second fasteners 1490 through first face wall 1424 and oneof floor beams 1020. The preceding subject matter of this paragraphcharacterizes example 88 of the present disclosure, wherein example 88also includes the subject matter according to example 87, above.

In some examples, first face wall 1424 of first strut 1420 arepositioned against floor beam 1020. One or more of plurality of secondfasteners 1490 is installed through first face wall 1424 and one offloor beams 1020, thereby securing first strut 1420 relative to one offloor beams 1020.

The number of fasteners of plurality of second fasteners 1490 installedthrough first face wall 1424 and one of floor beams 1020 depends on theheight of first strut 1420. Some examples of plurality of secondfasteners 1490 include, but are not limited to, HI-LOK® fasteners,bolts, screws, and rivets.

Examples of present disclosure may be described in context of aircraftmanufacturing and service method 800 as shown in FIG. 8 and aircraft 700as shown in FIG. 7. During pre-production, illustrative method 800 mayinclude specification and design block 804 of aircraft 802 and materialprocurement block 806. During production, component and subassemblymanufacturing block 808 and system integration block 810 of aircraft 700may take place. Thereafter, aircraft 700 may go through certificationand delivery block 812 to be placed in service block 814. While inservice, aircraft 700 may be scheduled for routine maintenance andservice block 816. Routine maintenance and service may includemodification, reconfiguration, refurbishment, etc. of one or moresystems of aircraft 700.

Each of processes of illustrative method 800 may be performed or carriedout by system integrator, third party, and/or an operator e.g.,customer. For purposes of this description, system integrator mayinclude, without limitation, any number of aircraft manufacturers andmajor-system subcontractors; third party may include, withoutlimitation, any number of vendors, subcontractors, and suppliers; and anoperator may be an airline, leasing company, military entity, serviceorganization, and so on.

As shown in FIG. 8, aircraft 700 produced by illustrative method 800 mayinclude airframe 1118 with plurality of high-level systems 750 andinterior 770. Examples of high-level systems 750 include one or more ofpropulsion system 730, electrical system 740, hydraulic system 760, andenvironmental system. Any number of other systems may be included.Although an aerospace example is shown, principles disclosed herein maybe applied to other industries, such as automotive industry.Accordingly, in addition to aircraft 700, principles disclosed hereinmay apply to other vehicles, e.g., land vehicles, marine vehicles, spacevehicles, etc.

Apparatuses and methods shown or described herein may be employed duringany one or more of stages of manufacturing and service method 800. Forexample, components or subassemblies corresponding to component andsubassembly manufacturing block 808 may be fabricated or manufactured inmanner similar to components or subassemblies produced while aircraft700 is in service block 814. Also, one or more examples of apparatuses,methods, or combination thereof may be utilized during production stages(block 808 and block 810), for example, by substantially expeditingassembly of or reducing cost of aircraft 700. Similarly, one or moreexamples of apparatus or method realizations, or combination thereof,may be utilized, for example and without limitation, while aircraft 700is in service block 814 and/or during maintenance and service block 816.

Different examples of apparatuses and methods disclosed herein includevariety of components, features, and functionalities. It should beunderstood that various examples of apparatuses and methods disclosedherein may include any of components, features, and functionalities ofany of other examples of apparatuses and methods disclosed herein in anycombination, and all of such possibilities are intended to be withinscope of present disclosure.

Many modifications of examples set forth herein will come to mind to oneskilled in art to which present disclosure pertains having benefit ofteachings presented in foregoing descriptions and associated drawings.

Therefore, it is to be understood that present disclosure is not to belimited to specific examples illustrated and that modifications andother examples are intended to be included within scope of appendedclaims. Moreover, although foregoing description and associated drawingsdescribe examples of present disclosure in context of certainillustrative combinations of elements and/or functions, it should beappreciated that different combinations of elements and/or functions maybe provided by alternative implementations without departing from scopeof appended claims. Accordingly, parenthetical reference numerals inappended claims are presented for illustrative purposes only and are notintended to limit scope of claimed subject matter to specific examplesprovided in present disclosure.

What is claimed is:
 1. A seating-system kit for a vehicle that comprises floor beams, a primary pair of seat tracks, attached to the floor beams, and a first seat assembly, comprising a first seat support and a first plurality of seats, attached to the first seat support, wherein the first seat support is attached to the primary pair of seat tracks and the floor beams support floor panels that define a floor surface, the vehicle having a virtual longitudinal plane, perpendicular to the floor surface, and a virtual longitudinal axis, parallel to the floor surface and lying in the virtual longitudinal plane, the seating-system kit comprising: a secondary pair of seat tracks; and a second seat assembly, comprising a second seat support and a second plurality of seats attached to the second seat support, and wherein the second seat support is configured to be attached to the secondary pair of seat tracks and the secondary pair of seat tracks is configured to be attached to the floor beams of the vehicle such that only one seat track of the secondary pair of seat tracks is positioned between seat tracks of the primary pair of seat tracks along an entire length of the secondary pair of seat tracks.
 2. The seating-system kit according to claim 1, wherein the secondary pair of seat tracks is configured to be attached to the floor beams of the vehicle such that each of the secondary pair of seat tracks is parallel to the virtual longitudinal axis of the vehicle.
 3. The seating-system kit according to claim 1, wherein each seat track of the secondary pair of seat tracks is straight.
 4. The seating-system kit according to claim 1, wherein seat tracks of the secondary pair of seat tracks have identical lengths.
 5. The seating-system kit according to claim 1, wherein each of the secondary pair of seat tracks is shorter than each of the primary pair of seat tracks.
 6. The seating-system kit according to claim 1, wherein each seat track of the secondary pair of seat tracks and each seat track of the primary pair of seat tracks have identical widths.
 7. The seating-system kit according to claim 1, wherein the first plurality of seats of the first seat assembly and the second plurality of seats of the second seat assembly have equal numbers of seats.
 8. The seating-system kit according to claim 1, wherein the second plurality of seats of the second seat assembly comprises one of a plurality of aircraft seats, a plurality of watercraft seats, or a plurality of land-vehicle seats.
 9. The seating-system kit according to claim 1, wherein the second plurality of seats of the second seat assembly comprises three seats.
 10. The seating-system kit according to claim 1, further comprising a fourth seat assembly, comprising a fourth seat support and a fourth plurality of seats, attached to the fourth seat support, and wherein: the fourth seat assembly is configured to be positioned, in lieu of the second seat assembly, between the first seat assembly and a third seat assembly, comprising a third plurality of seats; the fourth seat support is configured to be attached to the primary pair of seat tracks; and the fourth plurality of seats of the fourth seat assembly and the third plurality of seats have identical numbers of seats.
 11. The seating-system kit according to claim 10, wherein the second plurality of seats of the second seat assembly and the fourth plurality of seats of the fourth seat assembly have different numbers of seats.
 12. The seating-system kit according to claim 1, wherein the first plurality of seats is configured to align with the second plurality of seats along the virtual longitudinal axis.
 13. The seating-system kit according to claim 1, wherein: the first plurality of seats comprises a first inboard seat, positioned closer to the virtual longitudinal plane than all other seats in the first plurality of seats; the second plurality of seats comprises a second inboard seat, positioned closer to the virtual longitudinal plane than all other seats in the second plurality of seats; and a first shortest distance between the first inboard seat and the virtual longitudinal plane is identical to a second shortest distance between the second inboard seat and the virtual longitudinal plane.
 14. A seating-system kit for a vehicle that comprises floor beams, a primary pair of seat tracks, attached to the floor beams, and a first seat assembly, comprising a first seat support and a first plurality of seats, attached to the first seat support, wherein the first seat support is attached to the primary pair of seat tracks and the floor beams support floor panels that define a floor surface, the vehicle having a virtual longitudinal plane, perpendicular to the floor surface, and a virtual longitudinal axis, parallel to the floor surface and lying in the virtual longitudinal plane, the seating-system kit comprising: a secondary pair of seat tracks; and a second seat assembly, comprising a second seat support and a second plurality of seats, attached to the second seat support, and wherein the second seat support is configured to be attached to the secondary pair of seat tracks, and the second seat support is geometrically different from the first seat support.
 15. A seating-system kit for a vehicle that comprises floor beams, a primary pair of seat tracks, attached to the floor beams, and a first seat assembly, comprising a first seat support and a first plurality of seats, attached to the first seat support, wherein the first seat support is attached to the primary pair of seat tracks and the floor beams support floor panels that define a floor surface, the vehicle having a virtual longitudinal plane, perpendicular to the floor surface, and a virtual longitudinal axis, parallel to the floor surface and lying in the virtual longitudinal plane, the seating-system kit comprising: a secondary pair of seat tracks; and a second seat assembly, comprising, a second seat support and a second plurality of seats, attached to the second seat support, and wherein: the second seat support is configured to be attached to the secondary pair of seat tracks; the second seat assembly is configured to be positioned between the first seat assembly and a third seat assembly, comprising a third plurality of seats; and the second plurality of seats of the second seat assembly and the third plurality of seats have different numbers of seats.
 16. A seating-system kit for a vehicle that comprises floor beams, a primary pair of seat tracks, attached to the floor beams, and a first seat assembly, comprising a first seat support and a first plurality of seats, attached to the first seat support, wherein the first seat support is attached to the primary pair of seat tracks and the floor beams support floor panels that define a floor surface, the vehicle having a virtual longitudinal plane, perpendicular to the floor surface, and a virtual longitudinal axis, parallel to the floor surface and lying in the virtual longitudinal plane, the seating-system kit comprising: a secondary pair of seat tracks; and a second seat assembly, comprising a second seat support and a second plurality of seats, attached to the second seat support, and wherein: the second seat support is configured to be attached to the secondary pair of seat tracks; seats in the second plurality of seats of the second seat assembly are configured to be arranged along a second row-axis; and the second seat support is configured to be attached to the secondary pair of seat tracks such that the second row-axis is perpendicular to the virtual longitudinal plane of the vehicle.
 17. A method of configuring a seating system of a vehicle that comprises floor beams, the seating system comprising a primary pair of seat tracks, attached to the floor beams and supporting a first seating assembly, the method comprising a step of: attaching a secondary pair of seat tracks to the floor beams of the vehicle such that one of the secondary pair of seat tracks is positioned between seat tracks of the primary pair of seat tracks, wherein only one seat track of the secondary pair of seat tracks is positioned between seat tracks of the prima pair of seat tracks along an entire length of the secondary pair of seat tracks.
 18. The method according to claim 17, further comprising: prior to the step of attaching the secondary pair of seat tracks to the floor beams, detaching the first seat assembly from the primary pair of seat tracks; and after the step of attaching the secondary pair of seat tracks to the floor beams, reattaching the first seat assembly to the primary pair of seat tracks.
 19. The method according claim 17, further comprising: prior to the step of attaching the secondary pair of seat tracks to the floor beams, detaching floor panels from the primary pair of seat tracks; and after the step of attaching the secondary pair of seat tracks to the floor beams, attaching the floor panels to the primary pair of seat tracks and to the secondary pair of seat tracks.
 20. The method of claim 17, further comprising, after the step of attaching the secondary pair of seat tracks, a step of attaching a second seat assembly to the secondary pair of seat tracks.
 21. The method according to claim 20, wherein: the first seat assembly comprises a first seat support and a first plurality of seats, attached to the first seat support; the second seat assembly comprises a second seat support and a second plurality of seats, attached to the second seat support; and the first plurality of seats and the second plurality of seats have equal numbers of seats.
 22. The method according to claim 21, wherein: the step of attaching the second seat assembly to the secondary pair of seat tracks comprises a step of attaching the second seat support of the second seat assembly to the secondary pair of seat tracks; and the second seat support is geometrically different from the first seat support, attached to the primary pair of seat tracks.
 23. The method according to claim 22, wherein the step of attaching the second seat support of the second seat assembly to the secondary pair of seat tracks comprises a step of installing a plurality of third fasteners, each extending through the second seat support and through one of the secondary pair of seat tracks.
 24. The method according to claim 17, wherein the step of attaching the secondary pair of seat tracks to the floor beams comprises aligning the secondary pair of seat tracks to the floor beams such that each seat track in the secondary pair of seat tracks is perpendicular to each of the floor beams.
 25. The method according to claim 17, wherein the step of attaching the secondary pair of seat tracks to the floor beams comprises steps of: attaching a plurality of struts, comprising at least one of a first strut or a second strut, to the floor beams; and attaching the secondary pair of seat tracks to the plurality of struts.
 26. The method according to claim 25, wherein: the one of the floor beams comprises an opening; the step of attaching the plurality of struts to the one of the floor beams comprises a step of attaching the second strut to the one of the floor beams; the second strut comprises two second parallel side walls, a second face wall, connecting the two second parallel side walls; and tabs, extending from opposite sides of the second face wall and perpendicular to the two second parallel side walls; and one of the tabs at least partially covers the opening.
 27. The method according to claim 26, wherein: the one of the floor beams comprises a first side and a second side, opposite the first side; and the step of attaching the second strut to the one of the floor beams comprises: positioning a doubler against the first side of the one of the floor beams; positioning the second strut against the second side of the one of the floor beams; forming one of a plurality of fastener openings through the second strut, through the one of the floor beams, and through the doubler; and installing one of a plurality of second fasteners through the one of the plurality of fastener openings to interconnect the second strut, the one of the floor beams, and the doubler.
 28. The method according to claim 27, wherein the one of the plurality of second fasteners is installed through the one of the tabs, at least partially covering the opening in the one of the floor beams.
 29. The method according to claim 27, wherein the one of the plurality of second fasteners is installed through the second face wall of the second strut.
 30. The method according to claim 27, wherein the one of the plurality of second fasteners is installed through another one of the tabs, extending away from the opening in the one of the floor beams.
 31. The method according to claim 27, wherein the step of attaching the second strut to the one of the floor beams further comprises positioning a spacer into the opening in the one of the floor beams such that at least a portion of the spacer is between the doubler and the one of the tabs of the second strut.
 32. The method according to claim 31, wherein the step of attaching the second strut to the one of the floor beams further comprises applying adhesive between the doubler and the first side of the one of the floor beams and between the doubler and the spacer.
 33. The method according to claim 27, wherein the step of attaching the second strut to the one of the floor beams further comprises: detaching a bracket from the one of the floor beams; forming an additional one of the plurality of fastener openings through the doubler; and installing another one of the plurality of second fasteners through the additional one of the plurality of fastener openings and through the bracket to interconnect the bracket, the one of the floor beams; and the doubler.
 34. The method according to claim 25, wherein the step of attaching the plurality of struts to the one of the floor beams comprises a step of attaching the first strut to the one of the floor beams.
 35. The method according to claim 34, wherein: the first strut comprises two first parallel side walls and a first face wall that connects the two first parallel side walls; and the step of attaching the first strait to the one of the floor beams comprises installing multiple ones of a plurality of second fasteners through the first face wall and the one of the floor beams. 